897 results on '"Agostini, S."'
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2. Ages, geochemistry and Sr-Nd-Pb isotopes of alkaline potassic volcanic rocks from the Ahar-Arasbaran region (NW Iran): Evidence for progressive evolution of mantle sources during the Neotethyan subduction system
- Author
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Natali, C., Aghazadeh, M., Braschi, E., Avanzinelli, R., Badrzadeh, Z., Bianchini, G., Casalini, M., Agostini, S., Mattei, M., and Conticelli, S.
- Published
- 2024
- Full Text
- View/download PDF
3. Fossil hydrothermal oceanic systems through in-situ B isotopes in ophicarbonates (N. Apennines, Italy)
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Cannaò, E., Tiepolo, M., Agostini, S., and Scambelluri, M.
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- 2024
- Full Text
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4. Boron isotope composition of coexisting tourmaline and hambergite in alkaline and granitic pegmatites
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Sunde, Ø, Friis, H, Andersen, T, Trumbull, RB, Wiedenbeck, M, Lyckberg, P, Agostini, S, Casey, WH, and Yu, P
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Boron isotopes ,Pegmatites ,Alkaline ,Tourmaline ,Hambergite ,Geochemistry ,Geology ,Geophysics ,Geochemistry & Geophysics - Abstract
The boron isotopic composition of tourmaline and hambergite (Be2BO3[OH,F]) from peraluminous (n = 12), peralkaline (n = 1), and peralkaline nepheline syenite (n = 16) pegmatites has been measured by secondary ion mass spectrometry, for which a new hambergite reference material was developed. The focus of this study is on nepheline syenite pegmatites from the Larvik Plutonic Complex (Norway) and one peralkaline pegmatite related to the nearby Eikeren-Skrim Complex (Norway), where we investigate the source of boron as being from magmatic vs. external fluids. Tourmaline-hambergite mineral pairs were also analysed from peraluminous pegmatite localities (Russia, Tajikistan, and Pakistan) to test for systematic B-isotope fractionation between these two minerals. Tourmaline and hambergite from peraluminous granitic pegmatites have light boron ratios (δ11B = −12.9to −1.0‰) associated with S-type granites, whereas peralkaline granitic and nepheline syenite pegmatites have boron ratios (δ11B = −1.7 to 11.8‰), which we interpret is a result of heavy‑boron enrichment from external fluids. Our data show that hambergite tracks isotope variations of its geochemical setting and could therefore be used as a proxy mineral in place of tourmaline when geochemical stability favours hambergite. The results suggest a slight but consistent partitioning of B-isotopes between tourmaline and hambergite, with Δ11B = δ11Btourmaline−δ11Bhambergite in the range of approximately −3‰ to −5‰. Boron is in trigonal coordination with oxygen in both of these mineral phases as verified by NMR. Single crystal XRD analyses of tourmaline and hambergite reveal consistent longer distances of tourmaline relative to hambergite. We attribute the boron isotopic fractionation to the longer bond-lengths in tourmaline compared with hambergite.
- Published
- 2020
5. Metasomatism in the Finero Phlogopite Peridotite: New insights from C and N concentrations and δ13C - δ11B signatures
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Cannaò, E., Tiepolo, M., Fumagalli, P., Grieco, G., and Agostini, S.
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- 2022
- Full Text
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6. Unveiling the occurrence of transient, multi-contaminated mafic magmas inside a rhyolitic reservoir feeding an explosive eruption (Nisyros, Greece)
- Author
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Braschi, E., Mastroianni, F., Di Salvo, S., Casalini, M., Agostini, S., Vougioukalakis, G., and Francalanci, L.
- Published
- 2022
- Full Text
- View/download PDF
7. Marine Aerosols : Measurements by the Tara Pacific Expedition
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Flores, J. M., Bourdin, G., Altaratz, O., Trainic, M., Lang-Yona, N., Dzimban, E., Steinau, S., Tettich, F., Planes, S., Allemand, D., Agostini, S., Banaigs, B., Boissin, E., Boss, E., Douville, E., Forcioli, D., Furla, P., Galand, P. E., Sullivan, M., Gilson, É., Lombard, F., Moulin, C., Pesant, S., Poulain, J., Reynaud, S., Romac, S., Sunagawa, S., Thomas, O. P., Troublé, R., de Vargas, C., Thurber, R. Vega, Voolstra, C. R., Wincker, P., Zoccola, D., Bowler, C., Gorsky, G., Rudich, Y., Vardi, A., and Koren, I.
- Published
- 2020
8. Tara Pacific Expedition’s Atmospheric Measurements of Marine Aerosols across the Atlantic and Pacific Oceans : Overview and Preliminary Results
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Flores, J. M., Bourdin, G., Altaratz, O., Trainic, M., Lang-Yona, N., Dzimban, E., Steinau, S., Tettich, F., Planes, S., Allemand, D., Agostini, S., Banaigs, B., Boissin, E., Boss, E., Douville, E., Forcioli, D., Furla, P., Galand, P. E., Sullivan, M. B., Gilson, É., Lombard, F., Moulin, C., Pesant, S., Poulain, J., Reynaud, S., Romac, S., Sunagawa, S., Thomas, O. P., Troublé, R., de Vargas, C., Thurber, R. Vega, Voolstra, C. R., Wincker, P., Zoccola, D., Bowler, C., Gorsky, G., Rudich, Y., Vardi, A., and Koren, I.
- Published
- 2020
9. Ophicarbonate evolution from seafloor to subduction and implications for deep-Earth C cycling
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Cannaò, E., Scambelluri, M., Bebout, G.E., Agostini, S., Pettke, T., Godard, M., and Crispini, L.
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- 2020
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10. Disentangling serpentinization events at the massif scale through microstructural and B isotope characterization
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Ressico, F, Vitale Brovarone, A, Agostini, S, Malaspina, N, Cannaò, E, Olivieri, O, Olivieri, OS, Ressico, F, Vitale Brovarone, A, Agostini, S, Malaspina, N, Cannaò, E, Olivieri, O, and Olivieri, OS
- Published
- 2023
11. Neodymium isotopes of central Mediterranean phosphatic hardgrounds reveal Miocene paleoceanography
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Cornacchia, I., Brandano, M., Agostini, S., and Munnecke, A.
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Neodymium isotopes ,paleoceanography ,hardgrounds ,Geology - Abstract
Understanding the causes of the formation of hardgrounds provides insights on the oceanographic evolution of a basin. Phosphate-rich hardground formation interrupted carbonate ramp deposition in the Mediterranean during the Miocene. We analyzed the εNd record of three central Mediterranean hardgrounds to identify the origin of the phosphate-rich waters that formed them within the frame of Mediterranean Miocene paleoceanographic evolution. The Nd isotopes suggest that eastern Mediterranean deep waters were controlled by runoff, in contrast to Atlantic and Indian Ocean waters. This Nd isotope record attests to the weakening of Mediterranean circulation during the Miocene due to closure of the Indian Gateway. Limited exchange with Atlantic shallow seawater led to long residence times for deep waters in the basin. This record indicates the role of upwelling in formation of phosphate hardgrounds and shows the influence of global climate change and local paleoceanographic conditions.
- Published
- 2022
12. Editorial: Fluid-mobile element tracers of subduction processes—the record in volcanic arc magmas and exposed subduction complexes
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Leeman, W. P., primary, Agostini, S., additional, Barnes, J. D., additional, Li, H.-Y., additional, Marschall, H. R., additional, and Ryan, J. G., additional
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- 2022
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13. Regreso a la Presencialidad: larga o corta vida
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Giancarlo Giorgio De Agostini S., Ph.D.
- Abstract
Aunque en algunas instituciones se tenía consciencia de la necesidad presente y futura de la virtualidad, la actual “pandemia” llevó a diversas organizaciones a implementar, apresuradamente, sistemas de enseñanza-aprendizaje en línea. El presente artículo desea llenar ese vacío orientando al lector en relación a qué es el e-Learning, sus características, beneficios, bondades, diseño, estructura, evaluaciones, y las bases teóricas. Ya conocemos por experiencia propia y por vivencias de colegas lo que afirma la UNESCO “La idea del docente individual encerrado en el aula, al margen de la responsabilidad social, de la educación y la escuela, frente a las familias y las comunidades, está en crisis” (Organización de la Naciones Unidas para la Educación, la Ciencia y la Cultura, UNESCO, 2005).
- Published
- 2021
14. Bioregione e custodia dell’ambiente fra etica, sviluppo e conservazione / Bioregion and environmental stewardship among ethics, development and conservation
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Agostini, S.
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pianificazione ambientale ,territorialism ,sistema ambientale ,Settore ICAR/20 - Tecnica e Pianificazione Urbanistica ,pianificazione ecologica ,environmental planning ,territorialismo ,bioregione ,Settore ICAR/21 - Urbanistica ,ecological planning ,bioregion ,environmental system - Published
- 2022
15. Ambiente Territorio Città : Quando le risorse diventano emergenze
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Agostini, S.
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Environmental emergencies ,Settore ICAR/20 - Tecnica e Pianificazione Urbanistica ,Climate Change ,City ,Heidegger ,Settore ICAR/21 - Urbanistica ,Philosophy of regional planning ,Ecological Planning ,Urban and Regional Planning ,Settore ICAR/18 - Storia dell'Architettura ,Environmental Planning ,Emvironment ,Territory ,Urban Design ,Spatial Planning - Published
- 2022
16. Analisi preliminare delle malte di alcuni siti archeologici di Corfinio (AQ)
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Tangari A. C., Agostini S., Marinangeli L., Baliva A., Pompilio L., and Somma M.C.
- Published
- 2022
17. Quaternary Melanephelinites and Melilitites from Nowbaran (NW Urumieh-Dokhtar Magmatic Arc, Iran): Origin of Ultrabasic-Ultracalcic Melts in a Post-Collisional Setting
- Author
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Lustrino M.[1, Salari G.[1], Rahimzadeh B.[3], Fedele L.[4], Masoudi F.[3], Agostini S.[5], Lustrino, M., Salari, G., Rahimzadeh, B., Fedele, L., Masoudi, F., and Agostini, S.
- Subjects
Geophysics ,Geochemistry and Petrology ,Ultramafic rock ,Back-arc basin ,igneous petrology ,nephelinite ,melilitite ,subduction ,ultrabasic ,Iran ,carbonatite ,geochemistry ,igneous petrology, nephelinite, subduction, ultrabasic, Iran, carbonatite, geochemistry ,Geochemistry ,Quaternary ,Geology - Abstract
The small Quaternary volcanic district of Nowbaran (NW Iran) belongs to the Urumieh-Dokhtar Magmatic Arc, a ~1800 km long NW-SE striking Cenozoic belt characterized by the irregular but abundant presence of subduction-related igneous products. Nowbaran rocks are characterized by absence of feldspars coupled with abundance of clinopyroxene and olivine plus nepheline, melilite and other rarer phases. All the rocks show extremely low SiO2 (35.4-41.4 wt%), very high CaO (13.1-18.3 wt%) and low Al2O3 (8.6-11.6 wt%), leading to ultracalcic compositions (i.e., CaO/Al2O3 >1). Other less peculiar, but still noteworthy, characteristics are the high MgO (8.7-13.3 wt%) and Mg# (0.70-0.75), coupled with a variable alkali content with sodic affinity (Na2O = 1.8-5.4 wt%; K2O = 0.2-2.3 wt%) and variably high LOI (1.9-10.4 wt%; average 4.4 wt%). Measured isotopic ratios (87Sr/86Sr = 0.7052-0.7056; 143Nd/144Nd = 0.51263-0.51266; 206Pb/204Pb = 18.54-18.66; 207Pb/204Pb = 15.66-15.68; 208Pb/204Pb = 38.66-38.79) show small variations and plot within the literature field for the Cenozoic volcanic rocks of western Iran but tend to be displaced towards slightly higher 207Pb/204Pb. Primitive mantle-normalized multielemental patterns are intermediate between typical subduction-related melts and nephelinitic/melilititic melts emplaced in intraplate tectonic settings. The enrichment in Th, coupled with high Ba/Nb and La/Nb, troughs at Ti in primitive mantle-normalised patterns, radiogenic 87Sr/86Sr and positive 7/4 anomalies (from +15.2 to +17.0) are consistent with the presence of (old) recycled crustal lithologies in the sources.The origin of Nowbaran magmas cannot be related to partial melting of C-H-free peridotitic mantle, nor to digestion of limestones and marls by “normal” basaltic melts. Rather, we favour an origin from carbonated lithologies. Carbonated eclogite-derived melts or supercritical fluids, derived from a subducted slab, reacting with peridotite matrix, could have produced peritectic orthopyroxene- and garnet-rich metasomes at the expenses of mantle olivine and clinopyroxene. The residual melt compositions could evolve towards SiO2-undersaturated, CaO- and MgO-rich and Al2O3-poor alkaline melts. During their percolation upwards, these melts can partially freeze reacting chromatographically with portions of the upper mantle wedge, but can also mix with melts from shallower carbonated peridotite. The T-P equilibration estimates for Nowbaran magmas based on recent models on ultrabasic melt compositions are compatible with provenance from the lithosphere-asthenosphere boundary at average temperature (~1200 °C ± 50 °C). Mixing of melts derived from subduction-modified mantle sources with liquids devoid of any subduction imprint, passively upwelling from slab break-off tears could generate magmas with compositions recorded in Nowbaran.
- Published
- 2021
18. Data on unveiling the occurrence of transient, multi-contaminated mafic magmas inside a rhyolitic reservoir feeding an explosive eruption (Nisyros, Greece)
- Author
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Mastroianni, F., primary, Braschi, E., additional, Casalini, M., additional, Agostini, S., additional, Di Salvo, S., additional, Vougioukalakis, G., additional, and Francalanci, L., additional
- Published
- 2022
- Full Text
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19. Unveiling the occurrence of transient, multi-contaminated mafic magmas inside a rhyolitic reservoir feeding an explosive eruption (Nisyros, Greece)
- Author
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Braschi E.[1], Mastroianni F.[2, Di Salvo S.[2], Casalini M.[2], Agostini S.[4], Vougioukalakis G.[5], and Francalanci L.[2]
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Geochemistry and Petrology ,Compositional heterogeneities ,Crustal assimilation ,Nisyros ,Pyroclastic deposits ,Sr-Nd isotopes ,Undercooling textures ,Geology ,pyroclastic deposits ,compositional heterogeneities ,undercooling textures ,crustal assimilation - Abstract
The investigation of heterogeneous magma systems enhances the understanding of magma differentiation and transfer processes in active volcanoes, thus constraining the dynamics driving the eruptions and the related hazard. Magma heterogeneity is generally preserved in the coeval juvenile products of explosive eruptions, as it occurs in the Upper Pumice sequence, emplaced by the last sub-Plinian explosive eruption at Nisyros volcano (Greece). The deposit comprises a basal fallout, overlaid by pyroclastic density current units, followed by a lagbreccia level. White-yellow, porphyritic, rhyolitic pumices constitute the main juvenile component. Grey, crystalrich juvenile clasts (CRCs) are less abundant (up to 10-15%), and are characterised by three different texture types (Type-A, -B and -C), with specific recurrence in the different depositional units and well correlated to the magma evolution. In the basal unit CRCs occur as andesitic to dacitic lapilli with Type-A and -B vesicular textures associated with highly variable trace element and isotopic compositions. In the lag-breccia deposit, the juvenile clasts occur as bombs with crenulated or bread-crust surfaces, displaying diktytaxitic Type-C textures and less evolved andesitic compositions, covering a larger Nd-isotope range at lower Sr-isotopes compared to the others. The CRCs are interpreted as the result of the rapid cooling of more mafic magma blobs sequentially intruded in the cooler rhyolitic host magma, in which they attained variable textures by different undercooling conditions, due to their variable compositions. We suggest that a two-stage AFC (Assimilation plus Fractional Crystallisation) process occurred at different pressures, before intrusion in the host magma, accounting for their heterogeneous chemical and isotopic characteristics. Firstly, the most primitive melts variably assimilated gneissic wallrock at depth, acquiring a variable Nd-isotope signature. On the way to the surface, they later experienced shallow AFC processes within different small magma reservoirs, involving heterogeneous carbonate-rocks such as pure limestone, metasomatised marble and skarn. Sequential dynamics of ascent and intrusion into the rhyolitic magma chamber lead the more evolved and skarn-contaminated Type-A and -B melts to firstly move in the upper part of the reservoir to be erupted in the early fallout deposits. Type-C more mafic melts later intruded the rhyolitic reservoir and were erupted in the lag-breccia deposit. The lowest Nd-isotopes recorded by CRCs, with respect to all the volcanic products of the Kos-Nisyros volcanic field, reveal the peculiar transient history for these magmas at relatively shallow levels in the crust. The CO2 release from the carbonate-rock assimilation has also possibly contributed to trigger the explosive eruption, discharging a large amount of CO2 into the atmosphere.
- Published
- 2022
20. Mammuthus meridionalis (Nesti, 1825) from Campo di Pile (L'Aquila, Abruzzo, Central Italy)
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Agostini, S., Palombo, M.R., Rossi, M.A., Di Canzio, E., and Tallini, M.
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- 2012
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21. Pancreatic Endocrine Tumors
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Agostini, S., Bret, P., de Baere, T., Durieux, O., Roche, A., and Bruneton, Jean Noel, editor
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- 1999
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22. Xenopumice erupted on 15 October 2011 offshore of El Hierro (Canary Islands): a subvolcanic snapshot of magmatic, hydrothermal and pyrometamorphic processes
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Del Moro, S., Di Roberto, A., Meletlidis, S., Pompilio, M., Bertagnini, A., Agostini, S., Ridolfi, F., and Renzulli, A.
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- 2015
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23. Peer Review #2 of "Methodological recommendations for assessing scleractinian and octocoral recruitment to settlement tiles (v0.1)"
- Author
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Agostini, S, additional
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- 2021
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24. P.0440 HSV-1 infection in Parkinson's disease
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Agostini, S., primary, Mancuso, R., additional, Costa, A.S., additional, Citterio, L.A., additional, Guerini, F.R., additional, Meloni, M., additional, and Clerici, M., additional
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- 2021
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25. Human peopling of Italian intramontane basins: The early Middle Pleistocene site of Pagliare di Sassa (L'Aquila, central Italy)
- Author
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Palombo, M.R., Mussi, M., Agostini, S., Barbieri, M., Di Canzio, E., Di Rita, F., Fiore, I., Iacumin, P., Magri, D., Speranza, F., and Tagliacozzo, A.
- Published
- 2010
- Full Text
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26. Isotopic Compositions (Li‐B‐Si‐O‐Mg‐Sr‐Nd‐Hf‐Pb) and Fe 2+ /ΣFe Ratios of Three Synthetic Andesite Glass Reference Materials (ARM‐1, ARM‐2, ARM‐3)
- Author
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Wu S.[1, Yang Y.[1, Jochum K.P.[3], Romer R.L.[4], Glodny J.[4], Savov I.P.[5], Agostini S.[6], De Hoog J.C.M.[7], Peters S.T.M.[8], Kronz A.[8], Zhang C.[9, 10], Bao Z.[9], Wang X.[9], Li Y.[1, Tang G.[1, Feng L.[1, Yu H.[11], Li Z.[11], Zhang L.[12], Lin J.[13], Zeng Y.[14], Xu C.[15], Wang Y.[15], Cui Z.[16], Deng L.[17], Xiao J.[17], Liu Y.[1, Xue D.[1, Zhang D.[1, Jia L.[1, Wang H.[1, Xu L.[1, Huang C.[1, Xie L.[1, Pack A.[8], Wörner G.[8], He M.[17], Li C.[1, Yuan H.[9], Huang F.[11], Li Q.[1, Yang J.[1, Li X.[1, and Wu F.[1
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In situ ,Materials science ,Isotope ,in situ isotope ratio analysis ,iron oxide state ,ARM glasses ,reference materials ,LA- (MC)-ICP-MS ,Geochemistry and Petrology ,Homogeneous ,Oxidation state ,Homogeneity (statistics) ,Andesite ,Analytical chemistry ,Geology ,Electron microprobe ,Microanalysis - Abstract
To expand the newly developed ARM glasses as reference materials for in situ microanalysis of isotope ratios and iron oxidation state by a variety of techniques such as SIMS, LA-MC-ICP-MS and EPMA, we report Li-B-Si-O-Mg-Sr-Nd-Hf-Pb isotope data and Fe2+/?Fe ratios for these glasses. The data were mainly obtained by TIMS, MC-ICP-MS, IR-MS and wetchemistry colorimetric techniques. The quality of these data was cross-checked by comparing different techniques or by comparing the results from different laboratories using the same technique. All three glasses appear to be homogeneous with respect to the investigated isotope ratios (except for B in ARM-3) and Fe2+/?Fe ratios at the scale of sampling volume and level of the analytical precision of each technique. The homogeneity of Li-B-O-Nd-Pb isotope ratios at the microscale (30-120 micronm) was estimated using LA-MC-ICP-MS and SIMS techniques. We also present new EPMA major element data obtained using three different instruments for the glasses. The determination of reference values for the major elements and their uncertainties at the 95% confidence level closely followed ISO guidelines and the Certification Protocol of the International Association of Geoanalysts. The ARM glasses may be particularly useful as reference materials for in situ isotope ratio analysis.
- Published
- 2021
27. A heterogeneous subcontinental mantle under the African–Arabian Plate boundary revealed by boron and radiogenic isotopes
- Author
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Agostini S.[1], Di Giuseppe P.[1], Manetti P.[2], Doglioni C.[3, and Conticelli S.[2
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Solid Earth sciences ,010504 meteorology & atmospheric sciences ,Science ,Geochemistry ,Volcanism ,010502 geochemistry & geophysics ,Geodynamics ,01 natural sciences ,Mantle (geology) ,Article ,Lithosphere ,Asthenosphere ,geodynamics ,petrology ,geochemistry ,westward drift of the lithosphere ,0105 earth and related environmental sciences ,Petrology ,Basalt ,Multidisciplinary ,Plate tectonics ,Medicine ,Upwelling ,boron ,Geology - Abstract
The northern and northwestern margins of the Arabian Plate are a locus of a diffuse and long-lasting (early Miocene to Pleistocene) Na-alkali basaltic volcanism, sourced in the asthenosphere mantle. The upwelling asthenosphere at the Africa–Arabia margin produces very limited magma volumes in the axial zone. Therefore, portions of hot, fertile mantle continue their eastward migration and are stored at shallower depths under the 100-km thick Arabian lithosphere, which is much thinner than the African one (≈175 km): this causes the occurrence and 20-Ma persistence of magma supply under the study area. Erupted basalts sampled a continuous variation of the mantle source, with a striking correlation among temperature, pressure and isotopic composition shifting between two end members: a 100 km-deep, more depleted source, and a 60 km-deep, more enriched one. In particular, we observed an unusual variation in boron isotopes, which in the oceanic domain does not vary between more depleted and more enriched mantle sources. This study shows that, at least in the considered region, subcontinental mantle is more heterogeneous than the suboceanic one, and able to record for very long times recycling of shallow material.
- Published
- 2021
28. Syn‐rift hydrothermal circulation in the Mesozoic carbonates of the western Adriatic continental palaeomargin (Western Southalpine Domain, NW Italy)
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Barale, L., primary, Bertok, C., additional, d’Atri, A., additional, Mantovani, A., additional, Martire, L., additional, Agostini, S., additional, Bernasconi, S. M., additional, Gerdes, A., additional, and Ferrando, S., additional
- Published
- 2021
- Full Text
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29. Involvement of cannabinoid CB1- and CB2-receptors in the modulation of exocrine pancreatic secretion
- Author
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Linari, G., Agostini, S., Amadoro, G., Ciotti, M.T., Florenzano, F., Improta, G., Petrella, C., Severini, C., and Broccardo, M.
- Published
- 2009
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30. From subduction- to strike slip-related volcanism: Sr-Nd-Pb isotope and geochronology of lavas from Sivas-Malatya region, Central-Eastern Anatolia
- Author
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Di Giuseppe, P., Agostini, S., Di Vincenzo, G., Manetti, P., Savaşçın, M. Y., and Conticelli, S.
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Sivas-Malatya, Isotope Geochemistry, Miocene-Pliocene Volcanism, Strike-Slip Faulting - Published
- 2021
31. The pyroclastic breccias from Cabezo Negro de Tallante (SE Spain). Is there any relation with carbonatitic magmatism?
- Author
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Innocenzi F.[1], Ronca S.[1], Agostini S.[2], Brandano M.[1], Caracausi A.[3], and Lustrino M.[1
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Incompatible element ,010504 meteorology & atmospheric sciences ,Carbonate ,Lava ,basaltic rocks ,Calcrete ,Carbonatite ,petrology ,subduction ,Geochemistry ,Pyroclastic rock ,010502 geochemistry & geophysics ,01 natural sciences ,chemistry.chemical_compound ,Geochemistry and Petrology ,Breccia ,Xenolith ,0105 earth and related environmental sciences ,Basalt ,Geology ,chemistry ,carbonatite ,carbonate ,calcrete ,Scoria - Abstract
The small Plio-Quaternary volcanic centre of Cabezo Negro de Tallante in SE Spain includes a thick deposit of polymictic pyroclastic tuff-breccia, whose fragments are agglutinated by a carbonate-rich component. This feature is also observed in other monogenetic volcanic centres cropping out in the Tallante-Cartagena volcanic district. The carbonate fraction has been recently interpreted in literature as representing a mantle component, therefore pointing to the existence of a diffuse carbonatitic activity in the area. Based on detailed sedimentological (presence of pisoids and root remnants), petrographic (presence of plagioclase and absence of euhedral silicate minerals in the calcite plagues), mineral chemistry (Ba-Sr-poor calcite composition), whole-rock chemistry (overall low incompatible element content in the pure carbonate fraction and a monotonous trace element negative correlation with CaO) as well as isotopic constraints (perfect correlations between Sr-Nd-Pb isotopic ratios with CaO in the basaltic and carbonate fraction, as well as heavy δ18O and light δ13C isotopic composition of the carbonate fraction), we propose a secondary origin for the carbonate component, excluding any contribution of mantle carbonatite melts. The presence of carbonates infiltrating the abundant mantle and crustal xenolith fragments found in the pyroclastic breccia is not related to the presence of carbonatitic melts at mantle to lower crustal depths, but to in-situ fragmentation of the Strombolian tuff-breccia deposit, followed by secondary carbonate infiltration. The pyroclastic breccia was indeed affected by an alternation of carbonate precipitation and dissolution in a vadose zone, where the activity of bacteria, fungi, roots and meteoric water led to the formation of a calcrete (caliche)-type deposits. Basaltic rocks (hawaiites and basanites) occur in the area as scoria and lava fragments in the pyroclastic breccia as well as small lava flows. They have been modelled with a low-degree partial melting of an amphibole-bearing peridotitic mantle close to the lithosphere-asthenosphere boundary. The origin of the mildly alkaline sodic basaltic activity in SE Spain post-dates the abundant and long-lasting subduction-related volcanic phase in the Betic Chain. Its origin is explained without requiring the presence of any thermal anomaly, but simply as consequence of the difference of lithospheric depths and edge-driven-type small-scale convection.
- Published
- 2021
32. Deciphering variable mantle sources and hydrous inputs to arc magmas in Kamchatka
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Iveson A.A.[1, Humphreys M.C.S. [1], Savov I.P.[3], de Hoog J.C.M.[4], Turner S.J.[2, Churikova T.G.[6, Macpherson C.G.[1], Mather T.A.[2], Gordeychik B.N.[7, Tomanikova L.[3], Agostini S.[9], Hammond K.[10], Pyle D.M.[2], and Cooper G.F.[11]
- Subjects
010504 meteorology & atmospheric sciences ,Subduction ,Mantle wedge ,Crust ,010502 geochemistry & geophysics ,01 natural sciences ,Mantle (geology) ,melt inclusion ,boron isotopes ,subduction zone ,metasomatism ,mantle ,Kamchatka ,Geophysics ,13. Climate action ,Space and Planetary Science ,Geochemistry and Petrology ,Magma ,Magmatism ,Earth and Planetary Sciences (miscellaneous) ,Metasomatism ,Petrology ,Geology ,0105 earth and related environmental sciences ,Melt inclusions - Abstract
The chemistry of primitive arc rocks provides a window into compositional variability in the mantle wedge, as well as slab-derived inputs to subduction-related magmatism. However, in the long-term cycling of elements between Earth's internal and external reservoirs, a key unknown is the importance of retaining mobile elements within the subduction system, through subduction-related metasomatism of the mantle. To address these questions, we have analysed olivine-hosted melt inclusions and corresponding bulk rocks from the Kamchatka arc. Suites of melt inclusions record evidence for entrapment along melt mixing arrays during assembly of diverse parental magma compositions. Systematic variations in parental magma B/Zr, Nb/Zr, Ce/B, and δ 11 B are also apparent among the different eruptive centres studied. These element ratios constrain the nature of subduction-related metasomatism and provide evidence for ambient mantle heterogeneity and variable degrees of mantle melting. High Nb/Zr and low B/Zr in back-arc rocks indicate smaller degree melts, lower slab-derived inputs, but relatively enriched mantle compositions. Similarly, small monogenetic eruptive centres located away from the main stratocones also tend to erupt magmas with relatively lower slab contribution and overall smaller melting degrees. Conversely, arc-front compositions reflect greater slab contributions and larger degree melts of a more depleted ambient mantle. Across-arc variations in δ 11 B (ranging from ca. − 6 ‰ in the rear-arc and Sredinny Ridge to + 7 ‰ in the Central Kamchatka Depression) are generally consistent with variable addition of an isotopically heavy slab-derived component to a depleted MORB mantle composition. However, individual volcanic centres (e.g. Bakening volcano) show correlations between melt inclusion δ 11 B and other geochemical indicators (e.g. Cl/K2O, Ce/B) that require mixing between isotopically distinct melt batches that have undergone different extents of crustal evolution and degassing processes. Our results show that while melt inclusion volatile inventories are largely overprinted during shallower melt storage and aggregation, incompatible trace element ratios and B isotope compositions more faithfully trace initial mantle compositions and subduction inputs. Furthermore, we suggest that the signals of compositional heterogeneity generated in the sub-arc mantle by protracted metasomatism during earlier phases of subduction can be preserved during later magma assembly and storage in the crust.
- Published
- 2021
33. A heterogeneous subcontinental mantle under the African–Arabian Plate boundary revealed by boron and radiogenic isotopes
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Agostini, S., Di Giuseppe, P., Manetti, P., Doglioni, C., and Conticelli, S.
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heterogeneous subcontinental mantle, African–Arabian Plate boundary, boron isotopes, Sr-Nd-Pb radiogenic isotopes - Published
- 2021
34. Petrological characterization of the Cenozoic igneous rocks of the Tafresh area, central Urumieh-Dokhtar Magmatic Arc (Iran)
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Salari G.[1], Lustrino M.[1, Ghorbani M.R.[3], Agostini S.[4], Fedele L.[5], Salari, Giulia, Lustrino, Michele, Ghorbani, Mohammad Reza, Agostini, Samuele, and Fedele, Lorenzo
- Subjects
adakites ,Urumieh-Dokhtar ,Zagros ,subduction-related magmatism ,calcalkaline series ,Zagro ,calcalkaline serie - Abstract
We report a petrographic and whole-rock geochemical characterization of the Cenozoic volcanic rocks cropping out in the Tafresh area of the central Urumieh-Dokhtar Magmatic Arc of Iran. The investigated rocks range mainly from basaltic andesite to dacite, and are considered to be genetically linked by (mostly) closed-system evolutionary processes involving fractionation of ferromagnesian minerals and plagioclase first, then of plagioclase and lesser amphibole (plus minor clinopyroxene) and finally of plagioclase with lesser alkali feldspar and minor amphibole. These represent a typical calcalkaline series emplaced in a subduction-related setting, producing the observed LILE-enriched and HFSE-depleted geochemical signature. The basaltic andesite compositions likely derived from an unsampled hydrous primitive melt equilibrated in a spinel-bearing metasomatized peridotite source, evolving at shallow to moderate crustal depths., Periodico di Mineralogia, Vol. 90 No. 1 (2021)
- Published
- 2021
35. The endogenous nociceptin/orphanin FQ-NOP receptor system as a potential therapeutic target for intestinal disorders
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Agostini, S. and Petrella, C.
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- 2014
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36. Biological and chemical characteristics of the coral gastric cavity
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Agostini, S., Suzuki, Y., Higuchi, T., Casareto, B. E., Yoshinaga, K., Nakano, Y., and Fujimura, H.
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- 2012
- Full Text
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37. Geodynamic evolution of the Aegean: constraints from the Plio-Pleistocene volcanism of the Volos--Evia area
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Innocenti, F., Agostini, S., Doglioni, C., Manetti, P., and Tonarini, S.
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Aegean Islands -- Environmental aspects ,Aegean Islands -- History ,Volcanism -- Research ,Geodynamics -- Research ,Glacial epoch -- Research ,Earth sciences - Abstract
The Plio-Pleistocene lava flows and domes of the Volos--Evia area were erupted between 3.4 and 0.5 Ma ago on the western continuation of the North Anatolian Fault, in a back-arc position with respect to the active arc. They are mainly high-K calc-alkaline trachyandesites. Based on their Sr--Nd--Pb isotopic compositions, the mantle source of the Volos--Evia area lavas is similar to that of a large volcanic belt that developed north of the Pelagonian--Attic--Cycladic--Menderes massifs, encompassing a 35 Ma timespan and widespread over a large area from NW Greece--Macedonia to the Aegean--western Anatolia. In contrast, southern Aegean arc rocks have a similar subduction fingerprint but distinctly lower Sr and higher Nd isotopic compositions. The geochemical and isotopic differences between southern and northern Aegean rocks may be ascribed to the different nature of the mantle wedge: depleted asthenosphere under the the southern Aegean, and lithosphere northward. The lack of an asthenospheric mantle wedge below the northern Aegean fits with the hypothesis of an almost horizontal subduction of the African slab. In the mantle reference frame the African slab is moving out of the mantle, and a slab-driven suction flow of the underlying mantle may be responsible for the recent development of a thin asthenospheric layer in the southern Aegean mantle wedge. doi: 10.1144/0016-76492009-149.
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- 2010
38. Reinforcement of gut immune barrier function via regulatory TH-17 pathway by a fermented milk dairy product contaning bifidobacterium lactis CNCM-I2494: PP043
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AGOSTINI, S., MORIEZ, R., LEVEQUE, M., GOUBERN, M., TONDEREAU, V., THEODOROU, V., LEGRAIN-RASPAUD, S., and EUTAMENE, H.
- Published
- 2014
39. Mechanistic studies of the water oxidation reaction with molecular iron catalysts
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D'Agostini, S., Bouwman, E., Hetterscheid, D.G.H., Koper, M.T.M., Overkleeft, H.S., Klein Gebbink, R.J.M., Lloret-Fillol, J., and Leiden University
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Water oxidation ,Iron catalysts ,Electrochemistry ,Homogeneous catalysis ,Electrocatalysis ,Oxygen evolution - Abstract
In this dissertation iron-based homogeneous catalysts were synthesized, characterized and investigated for water oxidation activity. The catalysts were studied under electrochemical conditions in order to compare the electrochemical approach to the catalysis based on the use of sacrificial oxidants. The mechanisms under which these catalysts operate have been explored with particular attention to the O−O bond formation step. The combination of electrochemical techniques and in situ characterization techniques allowed for the identification of the active intermediates responsible for catalysis. The influence of the presence of water oxidation catalysts in solution on the evolution of carbon dioxide from the surface of a pyrolytic graphite working electrode was also investigated. Overall, the results of this work demonstrate that the combination of in operando and in situ (spectro)electrochemical techniques allows for a complete investigation of the catalytic mechanism of the water oxidation reaction.
- Published
- 2020
40. Boron isotope composition of coexisting tourmaline and hambergite in alkaline and granitic pegmatites
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Sunde Ø.[1], Friis H.[1], Andersen T.[2], Trumbull R.B.[3], Wiedenbeck M.[3], Lyckberg P.[4], Agostini S.[5], Casey W.H.[6, and Yu P.[7]
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Alkaline ,Geochemistry & Geophysics ,010504 meteorology & atmospheric sciences ,Tourmaline ,geology ,Geochemistry ,boron isotopes ,pegmatites ,alkaline ,tourmaline ,hambergite ,chemistry.chemical_element ,Isotopes of boron ,Fractionation ,010502 geochemistry & geophysics ,01 natural sciences ,Peralkaline rock ,Hambergite ,Geochemistry and Petrology ,Boron ,Pegmatite ,0105 earth and related environmental sciences ,Isotope ,geology.rock_type ,Geology ,Geophysics ,chemistry ,Nepheline syenite ,Boron isotopes ,Pegmatites - Abstract
The boron isotopic composition of tourmaline and hambergite (Be2BO3[OH,F]) from peraluminous (n = 12), peralkaline (n = 1), and peralkaline nepheline syenite (n = 16) pegmatites has been measured by secondary ion mass spectrometry, for which a new hambergite reference material was developed. The focus of this study is on nepheline syenite pegmatites from the Larvik Plutonic Complex (Norway) and one peralkaline pegmatite related to the nearby Eikeren-Skrim Complex (Norway), where we investigate the source of boron as being from magmatic vs. external fluids. Tourmaline-hambergite mineral pairs were also analysed from peraluminous pegmatite localities (Russia, Tajikistan, and Pakistan) to test for systematic B-isotope fractionation between these two minerals. Tourmaline and hambergite from peraluminous granitic pegmatites have light boron ratios (δ11B = −12.9to −1.0‰) associated with S-type granites, whereas peralkaline granitic and nepheline syenite pegmatites have boron ratios (δ11B = −1.7 to 11.8‰), which we interpret is a result of heavy‑boron enrichment from external fluids. Our data show that hambergite tracks isotope variations of its geochemical setting and could therefore be used as a proxy mineral in place of tourmaline when geochemical stability favours hambergite. The results suggest a slight but consistent partitioning of B-isotopes between tourmaline and hambergite, with Δ11B = δ11Btourmaline−δ11Bhambergite in the range of approximately −3‰ to −5‰. Boron is in trigonal coordination with oxygen in both of these mineral phases as verified by NMR. Single crystal XRD analyses of tourmaline and hambergite reveal consistent longer distances of tourmaline relative to hambergite. We attribute the boron isotopic fractionation to the longer bond-lengths in tourmaline compared with hambergite.
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- 2020
41. Fingerprinting and relocating tectonic slices along the plate interface: Evidence from the Lago Superiore unit at Monviso (Western Alps)
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Gilio M.[1, Scambelluri M.[1], Agostini S.[3], Godard M.[4], Pettke T.[5], Agard P.[6], Locatelli M.[6], Angiboust S.[7], Universita degli studi di Genova, CNR Istituto di Geoscienze e Georisorse [Pisa] (IGG-CNR), Consiglio Nazionale delle Ricerche (CNR), Géosciences Montpellier, Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Universität Bern [Bern], Institut des Sciences de la Terre de Paris (iSTeP), Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS), Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Istituto di Geoscienze e Georisorse, Pisa, and Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
010504 meteorology & atmospheric sciences ,Geochemistry ,Oceanic crust ,High-pressure metamorphism ,010502 geochemistry & geophysics ,Ophiolite ,01 natural sciences ,Geochemistry and Petrology ,Lithosphere ,Metamorphic facies ,0105 earth and related environmental sciences ,[SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics ,geography ,geography.geographical_feature_category ,Monviso unit ,Subduction ,Fluid-rock exchange ,Geology ,Serpentinite ,Element transfer ,Massif ,15. Life on land ,Shear zone ,Eclogite - Abstract
International audience; The Lago Superiore Unit (LSU, Monviso Massif, Italian Western Alps) is a section of fossil oceanic lithosphere equilibrated to eclogite facies conditions (550 °C – 2.8 GPa) during Alpine subduction (45–40 Ma). It is cut by two major shear zones, namely the Intermediate (ISZ) and Lower Shear Zone (LSZ), mostly consisting of serpentinite. The lowermost, serpentine-rich, section of the Lago Superiore Unit, the Basal Serpentinite, separates the HP ophiolite domain from the underlying continental Dora-Maira Unit.Here we show that the LSZ and the Basal Serpentinite were active at different stages of the subduction and exhumation history of the complex. Most of retrograde deformation and mineral re-equilibration were localized in the LSZ. Channelized fluids percolating during this phase chemically homogenized the LSZ serpentinites, that preserved their HP mineralogy only locally; the best-preserved relicts of the eclogite-facies high pressure stage within the LSZ serpentinite are nodules of magnesite (representing former veins) and eclogite blocks. Differently, the underlying Basal Serpentinite largely escaped the exhumation-related processes and still records the prograde chemical and petrological history of the LSU serpentinite, from ocean-floor hydration to HP metamorphic conditions.The Lago Superiore Unit thus represents a snapshot of major Alpine metamorphic and shearing events, from prograde subduction to exhumation. Its km-scale thickness, and the oriented antigorite fabric in the Lower Shear Zone and Basal Serpentinite makes it a good seismic reflector. This HP ophiolite complex can thus be used as proxy of a deep (70–80 km) Alpine-type subduction zone, and to better constrain and interpret seismic images of present-day convergent margins.
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- 2020
42. Strongly SiO2-undersaturated, CaO-rich kamafugitic Pleistocene magmatism in Central Italy (San Venanzo volcanic complex) and the role of shallow
- Author
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Lustrino .[1, Ronca S.[1], Caracausi A.[3], Ventura Bordenca C.[4], Agostini S.[5], and Benedetto Faraone D.B.[1]
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Alkaline ,Quaternary ,Plume ,Ultrapotassic ,Isotope geochemistry ,Volcanism ,Italy ,Carbonatite ,Subduction ,Kamafugite ,Petrology - Abstract
The Pleistocene (~460-265 ka) San Venanzo volcanic complex belongs to the IAP (Intra-Apennine Province) in central Italy, which comprises at least four small Pleistocene monogenetic volcanoes plus several unrooted pyroclastic deposits with peculiar mineralogical and whole-rock chemical compositions. San Venanzo products are strongly SiO-undersaturated, CaO- and MgO-rich and show ultrapotassic serial character. The relatively common occurrence of calcite in the pyroclastic rocks and the overall high CaO content are interpreted in literature as primary mineral. The main rock facies at San Venanzo are calcite-rich scoria and lapilli tuffs, with minor massive lava flows, and a rare pegmatoid variant (melilitolitic pockets). All the San Venanzo rocks are feldspar-free, with a typical paragenesis of forsteritic olivine, non-stoichiometric Ca-rich diopside, melilite, leucite, kalsilite, opaque minerals, nepheline, phlogopite, calcite, apatite, cuspidine, wollastonite, kirschsteinite-monticellite s.s. ± glass and other minor and very rare minerals typical of agpaitic melts. Based on petrographic analyses, the studied rocks can be classified as olivine melilitites, olivine leucite melilitites, venanzites (a local variant of kamafugites), calcite leucite melilitolites and Ca-rich olivine leucite melilitite tuffs. Mass balance calculations indicate a direct genetic link between the lava bodies and the pegmatoid melilitolitic pocket through a fractional crystallization process characterized by the removal of ~74% of a melilite-bearing uganditic cumulate made up of melilite, leucite, olivine, kalsilite and chromite. Primitive mantle-normalized patterns of the lavas and tuffs are rather spiked and share negative anomalies for Ba, Nb, Ta, P and Ti resembling typical magmas generated by supra-subduction mantle wedge. These compositions are very different from the only two other kamafugite localities outside Italy (Toro Ankole and Virunga in the East Africa Rift and Alto Paranaiba Igneous Province in SE Brazil). The melilitolite sample is more incompatible element-enriched than the other San Venanzo volcanic rocks, coherently with its evolved liquid composition proposed here. Major and trace element contents indicate a general depletion proportional to the amount of CaO content. The negative trends in Harker-type diagrams with CaO as abscissa are compatible with a process of variable interaction between a silicate magma with sedimentary marly carbonates/limestones. The presence of Mg-rich (Fo) and rim-ward CaO-enriched (up to 1.72 wt%) euhedral olivine, as well as the presence of thin kirschsteinite rim around olivine crystals agree with a process of crustal carbonate assimilation by an originally strongly SiO-undersaturated silicate magma. On the other hand, the lack of feldspars even in the rocks with the highest SiO, the high CaO content, and the extreme SiO-undersaturation of San Venanzo rocks exclude their derivation from a simple peridotitic source. In order to generate these peculiar compositions, the presence of a SiO-KO-CaO-rich HO-bearing component, identified in a carbonated phlogopite peridotite is required. The results of different isotopic systematics (Sr-Nd-Pb-He-Ne-Ar) presented here are compatible with a process of crustal contamination both at mantle source levels (to explain the general N-S isotopic trends recorded in Quaternary volcanic rocks of Italian peninsula and Sicily) and with interaction of ultrabasic melts with limestones at shallow crustal depths.
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- 2020
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43. Percorso diagnostico-terapeutico per il paziente con calcolosi renale: update 2020
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Cupisti, A, Trinchieri, A, Lombardi, M, Agostini, S, Arcidiacono, T, Beltrami, P, Berri, E, Bevilacqua, L, Campo, S, Cannavò, R, Croppi, E, Casarrubea, G, Caviglioli, C, Crisci, A, D'Addessi, A, Sio, M, Fantuzzi, A, Fusaro, M, Gambaro, G, Garofalo, M, Micali, S, Marangella, M, Petrarulo, M, Piccinocchi, G, Sessa, A, Tasca, A, Vezzoli, G, Vitale, C, Zattoni, F, and Gruppo di Studio Multidisciplinare per la Calcolosi Renale
- Subjects
nutrition ,prevention ,diagnosis ,kidney stones ,urolithiasis - Published
- 2020
44. Petrological evolution of Karlıova-Varto volcanism (Eastern Turkey). Magma genesis in a transtensional triple-junction tectonic setting
- Author
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Karaoglu O.[1], Gülmez F.[2], Göçmengil G.[3], Lustrino M.[4, Di Giuseppe P.[6, Manetti P.[8], Savasçin M.Y.[9], and Agostini S.[6]
- Subjects
010504 meteorology & atmospheric sciences ,Lava ,Alkali basalt ,Geochemistry ,Pyroclastic rock ,Volcanism ,asthenospheric mantle source ,collision ,Eastern Turkey ,lithosphere ,triple-junction ,010502 geochemistry & geophysics ,01 natural sciences ,Geochemistry and Petrology ,Triple-junction ,Collision ,Lithosphere ,Asthenospheric mantle source ,0105 earth and related environmental sciences ,Basalt ,geography ,Fractional crystallization (geology) ,geography.geographical_feature_category ,Partial melting ,Geology ,Volcanic rock ,13. Climate action - Abstract
A diffuse and voluminous (>1400 km3) Miocene-Quaternary volcanic activity developed around the KarlıovaTriple Junctionin East Anatolia as a consequence of collisional tectonics among Anatolia, Arabia andEurasiacontinental plates. The volcanic rocks of this region are grouped into three phases of activity: 1) Early Phase (Solhanvolcanism; ~7.3–4.4 Ma), with emplacement ofalkali basaltto trachytelava flowsand pyroclastic successions; 2) Middle Phase (Turnadağ and Vartovolcanism; ~3.6–2.6 Ma), mostly with products with the same compositional range plus minordacitesandrhyolites, and 3) Late Phase (Özenç volcanism; ~2.6–0.5 Ma), with emplacement of alkali basaltic, hawaiitic and mugearitic lavas and dykes. Primitive Mantle-normalized patterns of the three rock groups share an enrichedLILEand depleted HFSE contents, with overall positive spikes of Pb and mildly fractionated LREE/HREE trends showing more similar affinity to global subducting sediments rather than tomagmasemplaced in mid-plate settings (i.e., OIB). Initial Srisotopic ratiosof the least evolved compositions range from values lower than BSE (87Sr/86Sri = 0.7041) to radiogenic compositions (87Sr/86Sri = 0.7050). They reflect either FC-like processes, with87Sr/86Sriup to 0.7064, or closed systemfractional crystallization, with87Sr/86Sri = 0.7046–0.7049. Initial Nd are higher than ChUR estimate for the most and the least evolved compositions (143Nd/144Ndi = 0.51267–0.51280), indicating provenance from isotopically depleted sources. Leadisotopic ratiosare characterized by a remarkable homogeneous206Pb/204Pb (18.95–19.04), with207Pb/204Pb (15.65–15.72) and208Pb/204Pb (38.87–39.21) slightly above the Northern Hemisphere Reference Line, pointing towards the EMII end-member. Geochemical modelling for the least evolved volcanic units indicate the likely generation from an amphibole-bearing spinel-lherzolitic source. P-T calculations for partial melting calculations gave lithospheric pressures for initialmagma generation(0.8–1.3 GPa). Possible cause of melting might be related to passive upwelling ofasthenosphereas a response to the local extension linked to the development of North Anatolian and East Anatolian Fault Zones. Anyhow, volcanic units from the KTJ display only limited geochemical signatures of garnet-bearing sources, or any HIMU-OIB like characteristics, as instead observed in the other portions of the Eastern Anatolia. The long-lasting complextectonic evolutionof the Eastern Anatolia is responsible for the large geochemical variability of the magmatic products. However, the general characteristics of KTJ volcanic rocks are mainly dominated by subduction-related signatures, with most of the primary magma characteristics having been heavily masked by fractionation and crustal assimilation processes.
- Published
- 2020
45. Potentialities of XRF and EIS portable instruments for the characterisation of ancient artefacts
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Angelini, E., Grassini, S., Corbellini, S., Ingo, G.M., de Caro, T., Plescia, P., Riccucci, C., Bianco, A., and Agostini, S.
- Published
- 2006
- Full Text
- View/download PDF
46. Expanding Tara Oceans Protocols for Underway, Ecosystemic Sampling of the Ocean-Atmosphere Interface During Tara Pacific Expedition (2016–2018)
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Gorsky, Gabriel, Bourdin, Guillaume, Lombard, Fabien, Pedrotti, Maria Luiza, Audrain, Samuel, Bin, Nicolas, Boss, Emmanuel, Bowler, Chris, Cassar, Nicolas, Caudan, Loic, Chabot, Genevieve, Cohen, Natalie R., Cron, Daniel, De Vargas, Colomban, Dolan, John R., Douville, Eric, Elineau, Amanda, Flores, J. Michel, Ghiglione, Jean Francois, Haentjens, Nils, Hertau, Martin, John, Seth G., Kelly, Rachel L., Koren, Ilan, Lin, Yajuan, Marie, Dominique, Moulin, Clementine, Moucherie, Yohann, Pesant, Stephane, Picheral, Marc, Poulain, Julie, Pujo-pay, Mireille, Reverdin, Gilles, Romac, Sarah, Sullivan, Mathew B., Trainic, Miri, Tressol, Marc, Trouble, Romain, Vardi, Assaf, Voolstra, Christian R., Wincker, Patrick, Agostini, Sylvain, Banaigs, Bernard, Boissin, Emilie, Forcioli, Didier, Furla, Paola, Galand, Pierre E., Gilson, Eric, Reynaud, Stephanie, Sunagawa, Shinichi, Thomas, Olivier P., Thurber, Rebecca Lisette Vega, Zoccola, Didier, Planes, Serge, Allemand, Denis, Karsenti, Eric, Planes, S., Banaig, B., Boissin, E., Iwankow, G., Allemand, D., Zoccola, D., Reynaud, S., Beraud, E., Djerbi, N., Forcioli, D., Furla, P., Gilson, E., Mcmind, R., Ottaviani, A., Rottinger, E., Rouan, A., Zamoum, T., Flume, B. C. C., Pogoreutz, C., Voolstra, C. R., Rothig, T., Ziegler, M., Paoli, L., Ruscheweyh, H-j, Salazar, G., Sunagawa, S., Flores, J. M., Koren, I, Trainic, M., Lang-yona, N., Vardi, A., Conan, P., Ghiglione, J-f, Pujo-pay, M., Galand, P. E., Hochart, C., Audrain, S., Bourgois, E., Hertau, M., Lancelot, J., Monmarche, D., Moulin, C., Moucherie, Y., Trouble, R., Boss, E., Bourdin, G., Haentjens, N., Karp-boss, L., Agostini, S., Mitsuhashi, G., Kitano, Y., Da Silva, O., Dolan, J. R., Gorsky, G., Lemee, R., Lombard, F., Pedrotti, M-l, Cronin, D., Sullivan, M., Armstrong, E., Aury, J-m, Barbe, V, Belser, C., Carradec, Q., Labadie, K., Le-hoang, J., Noel, B., Poulain, J., Wincker, P., Klinges, G., Vega-thunder, R., Bonnival, E., De Vargas, C., Henry, N., Marie, D., Romac, S., Pesant, S., Miguel-gorda, M., Thomas, O. P., Bowler, C., Friedrich, R., Cassar, N., Lin, Y., John, S. G., Kelly, R. L., Cohen, N. R., Reverdin, G., Filee, J., Pedrotti, Maria Luiza, Organisation et montée en puissance d'une Infrastructure Nationale de Génomique - - France-Génomique2010 - ANR-10-INBS-0009 - INBS - VALID, Laboratoires d'excellence - LabexMER Marine Excellence Research: a changing ocean - - LabexMER2010 - ANR-10-LABX-0019 - LABX - OLD, Laboratoire d'océanographie de Villefranche (LOV), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), University of Maine, Tara Expéditions, Institut de biologie de l'Ecole Normale Supérieure (IBENS), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Nicholas School of the Environment, Duke University [Durham], Mercator Océan, Société Civile CNRS Ifremer IRD Météo-France SHOM, Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Woods Hole Oceanographic Institution (WHOI), Evolution des Protistes et Ecosystèmes Pélagiques (EPEP), Adaptation et diversité en milieu marin (AD2M), Station biologique de Roscoff [Roscoff] (SBR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff [Roscoff] (SBR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Géochrononologie Traceurs Archéométrie (GEOTRAC), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Department of Earth and Planetary Science [Rehovot], Weizmann Institute of Science [Rehovot, Israël], Laboratoire d'Océanographie Microbienne (LOMIC), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Observatoire océanologique de Banyuls (OOB), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), University of Southern California (USC), Station biologique de Roscoff (SBR), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Center for Marine Environmental Sciences [Bremen] (MARUM), Universität Bremen, Data Publisher for Earth and Environmental Science (PANGAEA), University of Bremen, Genoscope - Centre national de séquençage [Evry] (GENOSCOPE), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Processus et interactions de fine échelle océanique (PROTEO), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Department of Civil, Environmental and Geodetic Engineering [Columbus], Ohio State University [Columbus] (OSU), Laboratoire d'aérologie (LAERO), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Universität Konstanz, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Shimoda Marine Research Center, Université de Tsukuba = University of Tsukuba, Laboratoire d'Excellence CORAIL (LabEX CORAIL), Institut de Recherche pour le Développement (IRD)-Université des Antilles et de la Guyane (UAG)-École des hautes études en sciences sociales (EHESS)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de La Réunion (UR)-Université de la Polynésie Française (UPF)-Université de la Nouvelle-Calédonie (UNC)-Institut d'écologie et environnement-Université des Antilles (UA), Centre de recherches insulaires et observatoire de l'environnement (CRIOBE), Université de Perpignan Via Domitia (UPVD)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Symbiose Marine (SM), Evolution Paris Seine, Université des Antilles et de la Guyane (UAG)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles et de la Guyane (UAG)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche sur le Cancer et le Vieillissement (IRCAN), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA), Dpt génétique médicale [CHU Nice], Centre Hospitalier Universitaire de Nice (CHU Nice), Laboratoire d'Ecogéochimie des environnements benthiques (LECOB), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Observatoire océanologique de Banyuls (OOB), Centre Scientifique de Monaco (CSM), Department of Biology [ETH Zürich] (D-BIOL), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), National University of Ireland [Galway] (NUI Galway), Oregon State University (OSU), European Molecular Biology Laboratory [Heidelberg] (EMBL), TARA, ANR-10-INBS-0009,France-Génomique,Organisation et montée en puissance d'une Infrastructure Nationale de Génomique(2010), ANR-10-LABX-0019,LabexMER,LabexMER Marine Excellence Research: a changing ocean(2010), Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Brest (UBO), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire océanologique de Banyuls (OOB), Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut de Recherche pour le Développement (IRD)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut de Recherche pour le Développement (IRD)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Université des Antilles (UA)-Institut d'écologie et environnement-Université de la Nouvelle-Calédonie (UNC)-Université de la Polynésie Française (UPF)-Université de La Réunion (UR)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École des hautes études en sciences sociales (EHESS)-Université des Antilles et de la Guyane (UAG)-Institut de Recherche pour le Développement (IRD), Université des Antilles et de la Guyane (UAG)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles et de la Guyane (UAG)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (... - 2019) (UNS), Université Nice Sophia Antipolis (... - 2019) (UNS), Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Université des Antilles et de la Guyane (UAG)-École des hautes études en sciences sociales (EHESS)-École Pratique des Hautes Études (EPHE), Université de Perpignan Via Domitia (UPVD)-École Pratique des Hautes Études (EPHE), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), and Université Fédérale Toulouse Midi-Pyrénées
- Subjects
0106 biological sciences ,010504 meteorology & atmospheric sciences ,lcsh:QH1-199.5 ,[SDE.MCG]Environmental Sciences/Global Changes ,trace metals ,Ocean Engineering ,neuston ,Aquatic Science ,lcsh:General. Including nature conservation, geographical distribution ,Oceanography ,01 natural sciences ,Pacific ocean ,taxonomy ,neuston/plankton genomics/taxonomy/imaging ,ddc:570 ,Ecosystem ,14. Life underwater ,lcsh:Science ,Reef ,0105 earth and related environmental sciences ,Water Science and Technology ,[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere ,Global and Planetary Change ,geography ,geography.geographical_feature_category ,aerosols ,NCP ,IOP ,microplastic ,plankton genomics ,[SDU.OCEAN] Sciences of the Universe [physics]/Ocean, Atmosphere ,ACL ,010604 marine biology & hydrobiology ,Community structure ,imaging ,Pelagic zone ,Plankton ,Inlet ,neuston/plankton genomics/taxonomy/imaging, aerosols, NCP, IOP, trace metals, microplastic ,[SDE.BE] Environmental Sciences/Biodiversity and Ecology ,[SDE.MCG] Environmental Sciences/Global Changes ,13. Climate action ,lcsh:Q ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,Neuston - Abstract
Interactions between the ocean and the atmosphere occur at the air-sea interface through the transfer of momentum, heat, gases and particulate matter, and through the impact of the upper-ocean biology on the composition and radiative properties of this boundary layer. The Tara Pacific expedition, launched in May 2016 aboard the schooner Tara, was a 29-month exploration with the dual goals to study the ecology of reef ecosystems along ecological gradients in the Pacific Ocean and to assess inter-island and open ocean surface plankton and neuston community structures. In addition, key atmospheric properties were measured to study links between the two boundary layer properties. A major challenge for the open ocean sampling was the lack of ship-time available for work at “stations”. The time constraint led us to develop new underway sampling approaches to optimize physical, chemical, optical, and genomic methods to capture the entire community structure of the surface layers, from viruses to metazoans in their oceanographic and atmospheric physicochemical context. An international scientific consortium was put together to analyze the samples, generate data, and develop datasets in coherence with the existing Tara Oceans database. Beyond adapting the extensive Tara Oceans sampling protocols for high-resolution underway sampling, the key novelties compared to Tara Oceans’ global assessment of plankton include the measurement of (i) surface plankton and neuston biogeography and functional diversity; (ii) bioactive trace metals distribution at the ocean surface and metal-dependent ecosystem structures; (iii) marine aerosols, including biological entities; (iv) geography, nature and colonization of microplastic; and (v) high-resolution underway assessment of net community production via equilibrator inlet mass spectrometry. We are committed to share the data collected during this expedition, making it an important resource important resource to address a variety of scientific questions. ISSN:2296-7745
- Published
- 2019
47. Miocene paleoceanographic evolution of the Mediterranean area and carbonate production changes: A review
- Author
-
Cornacchia I.[1], Brandano M.[2, and Agostini S.[1]
- Subjects
Mediterranean climate ,geography ,geography.geographical_feature_category ,biology ,Miocene ,Mediterranean ,Structural basin ,biology.organism_classification ,Mediterranean Basin ,Carbonate platforms ,Nd isotopes ,paleoceanography ,Sr isotopes ,Foraminifera ,chemistry.chemical_compound ,Oceanography ,chemistry ,Benthic zone ,Paleoceanography ,carbonate platforms ,General Earth and Planetary Sciences ,Carbonate ,Reef - Abstract
Miocene is a key interval in the global climate evolution as well as in the geodynamic evolution of the Mediterranean basin. Therefore, global and regional factors controlled Miocene Mediterranean oceanography, which, in turn, affected carbonate production. In this work, we review the Miocene paleocenographic evolution of the Mediterranean starting from its Sr and Nd isotope records. Secondly, we discuss Mediterranean shallow-water carbonate production changes to identify the role of oceanographic conditions in controlling carbonate systems' evolution. During Aquitanian, Sr and Nd isotope records attest an open Mediterranean, mainly fed by the Indian Ocean. From the late Burdigalian, the intermittent connection with the Indian Ocean changed the overall circulation in the basin, leading to higher residence time of waters and smaller water exchanges with the adjacent oceans. In this newly established paleoceanographic framework, regional factors such as volcanism, significantly affected Mediterranean seawater chemistry. Local tectonics led to the development of small sub-basins in the Eastern Mediterranean, characterized by restricted water exchanges from the Tortonian in the easternmost part, to the early Messinian, as attested by the deviation of the Sr isotope record of the proto-Adriatic basin. Larger Benthic Foraminifera (LBF) assemblages dominated carbonate production in the Aquitanian, while they were the most affected by the Indo-Pacific closure, showing a demise after the Burdigalian. With the LBF demise, red algae and bryozoans dominated carbonate ramps from the middle Miocene to the Tortonian. Bryozoans in particular spread during the Monterey Event, favoured by global and regional factors. During early to middle Miocene, corals formed mounds in the oligophotic zone or coral carpets controlled by local conditions. Conversely, in the late Tortonian-early Messinian, they developed as huge reef complexes in the Western and Central Mediterranean, with the exception of small restricted sub-basins, such as the proto-Adriatic basin, where red algae and small benthic foraminifera persisted.
- Published
- 2021
48. Pituitary adenomas in childhood and adolescence. Clinical analysis of 10 cases
- Author
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De Menis, E., Visentin, A., Billeci, D., Tramontin, P., Agostini, S., Marton, E., and Conte, N.
- Published
- 2001
- Full Text
- View/download PDF
49. A marketed fermented dairy product containing Bifidobacterium lactis CNCM I-2494 suppresses gut hypersensitivity and colonic barrier disruption induced by acute stress in rats
- Author
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Agostini, S., Goubern, M., Tondereau, V., Salvador-Cartier, C., Bezirard, V., Lévèque, M., Keränen, H., Theodorou, V., Bourdu-Naturel, S., Goupil-Feuillerat, N., Legrain-Raspaud, S., and Eutamene, H.
- Published
- 2012
- Full Text
- View/download PDF
50. Spatio-temporal patterns of larval fish settlement in the northwestern Mediterranean Sea
- Author
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Faillettaz, R, primary, Voué, R, additional, Crec’hriou, R, additional, Garsi, LH, additional, Lecaillon, G, additional, Agostini, S, additional, Lenfant, P, additional, and Irisson, JO, additional
- Published
- 2020
- Full Text
- View/download PDF
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