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Start Over Author "Regattieri, Eleonora" Topic [sdu.envi]sciences of the universe [physics]/continental interfaces, environment
7 results on '"Regattieri, Eleonora"'

1. Paleotemperatures over multiple glacial-interglacial cycles from a subaqueous speleothem

Author

Drysdale, Russell N., Daëron, Mathieu, Pollard, Timothy, Dux, Florian, Peral, Marion, Blamart, Dominique, Greig, Alan, Woodhead, Jon, Zanchetta, Giovanni, Couchoud, Isabelle, Edwards, R. Lawrence, Hellstrom, John C., Isola, Ilaria, Regattieri, Eleonora, School of Geography, University of Melbourne, Environnements, Dynamiques et Territoires de la Montagne (EDYTEM), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), 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), School of Earth Sciences [Melbourne], Faculty of Science [Melbourne], University of Melbourne-University of Melbourne, Dipartimiento di Scienze della Terra, University of Pisa - Università di Pisa, Department of Geology and Geophysics, University of Minnesota [Twin Cities] (UMN), University of Minnesota System-University of Minnesota System, Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo, Environnements, Dynamiques et Territoires de Montagne (EDYTEM), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-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), and Couchoud, Isabelle

Subjects
[SDE] Environmental Sciences, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, Paleoclimate, [SDU.OCEAN] Sciences of the Universe [physics]/Ocean, Atmosphere, [SDE.MCG]Environmental Sciences/Global Changes, Glacial-interglacial cycles, Speleothem, [SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces, environment, Cycles glaciaires-interglaciaires, [SDE.MCG] Environmental Sciences/Global Changes, [SDU.STU.CL] Sciences of the Universe [physics]/Earth Sciences/Climatology, Geochemistry, [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology, [SDE]Environmental Sciences, Paleotemperature, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2019

2. Radiometrically dated speleothem records of Terminations IV and V and linkages to the North Atlantic

Author

pollard, timothy, Drysdale, Russell N., Woodhead, Jon, Edwards, R. Lawrence, Hellstrom, John C., Cheng, Hai, Dux, Florian, Daëron, Mathieu, Li, Xianglei, Wong, Henry, Couchoud, Isabelle, Regattieri, Eleonora, Zanchetta, Giovanni, Isola, Ilaria, Environnements, Dynamiques et Territoires de la Montagne (EDYTEM), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), School of Geography, University of Melbourne, School of Earth Sciences [Melbourne], Faculty of Science [Melbourne], University of Melbourne-University of Melbourne, Department of Geology and Geophysics, University of Minnesota [Twin Cities] (UMN), University of Minnesota System-University of Minnesota System, Institute of Global Environmental Change [China] (IGEC), Xi'an Jiaotong University (Xjtu), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), 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), Australian Nuclear Science and Technology Organisation [Australie] (ANSTO), Dipartimiento di Scienze della Terra, University of Pisa - Università di Pisa, Istituto Nazionale di Geofisica e Vulcanologia – Sezione di Pisa (INGV), Istituto Nazionale di Geofisica e Vulcanologia, Environnements, Dynamiques et Territoires de Montagne (EDYTEM), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-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), and Couchoud, Isabelle

Subjects
[SDE] Environmental Sciences, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, [SDE.MCG] Environmental Sciences/Global Changes, [SDU.STU.CL] Sciences of the Universe [physics]/Earth Sciences/Climatology, [SDU.OCEAN] Sciences of the Universe [physics]/Ocean, Atmosphere, [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology, [SDE.MCG]Environmental Sciences/Global Changes, [SDE]Environmental Sciences, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, [SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces, environment, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2019

3. Partitioning of Mg, Sr, Ba and U into a subaqueous speleothem

Author

Drysdale, Russell N., Zanchetta, Giovanni, Baneschi, Illaria, Guidi, Massimo, Isola, Ilaria, Couchoud, Isabelle, Piccinini, Leonardo, Greig, Alan, Wong, Henry, Woodhead, Jon, Regattieri, Eleonora, Corrick, Ellen, Bence, Paul, Spötl, Christoph, Denson, Eleanor, Gordon, Jay, Jaillet, Stéphane, Dux, Florian, Hellstrom, John C., School of Geography [Melbourne], Faculty of Science [Melbourne], University of Melbourne-University of Melbourne, Dipartimiento di Scienze della Terra, University of Pisa - Università di Pisa, CNR Istituto di Geoscienze e Georisorse [Pisa] (IGG-CNR), Consiglio Nazionale delle Ricerche (CNR), Istituto Nazionale di Geofisica e Vulcanologia – Sezione di Pisa (INGV), Istituto Nazionale di Geofisica e Vulcanologia, Environnements, Dynamiques et Territoires de la Montagne (EDYTEM), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Universita degli Studi di Padova, School of Earth Sciences [Melbourne], Australian Nuclear Science and Technology Organisation [Australie] (ANSTO), Department of Geology and Palaeontology, and University of Innsbruck

Subjects
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology, [SDE.MCG]Environmental Sciences/Global Changes, [SDE]Environmental Sciences, trace elements, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, speleothem, geochemistry
Abstract

International audience; The trace-element geochemistry of speleothems is becoming increasingly used for reconstructing palaeoclimate, with a particularemphasis on elements whose concentrations vary according to hydrological conditions at the cave site (e.g. Mg, Sr, Baand U). An important step in interpreting trace-element abundances is understanding the underlying processes of their incorporation.This includes quantifying the fractionation between the solution and speleothem carbonate via partition coefficients(where the partitioning (D) of element X (DX) is the molar ratio [X/Ca] in the calcite divided by the molar ratio [X/Ca] in theparent water) and evaluating the degree of spatial variability across time-constant speleothem layers. Previous studies of howthese elements are incorporated into speleothems have focused primarily on stalagmites and their source waters in naturalcave settings, or have used synthetic solutions under cave-analogue laboratory conditions to produce similar dripstones. However,dripstones are not the only speleothem types capable of yielding useful palaeoclimate information. In this study, weinvestigate the incorporation of Mg, Sr, Ba and U into a subaqueous calcite speleothem (CD3) growing in a natural cave poolin Italy. Pool-water measurements extending back 15 years reveal a remarkably stable geochemical environment owing to thedeep cave setting, enabling the calculation of precise solution [X/Ca]. We determine the trace element variability of ‘modern’subaqueous calcite from a drill core taken through CD3 to derive DMg, DSr, DBa and DU then compare these with publishedcave, cave-analogue and seawater-analogue studies. The DMg for CD3 is anomalously high (0.042 ± 0.002) compared to previousestimates at similar temperatures (~8 °C). The DSr (0.100 ± 0.007) is similar to previously reported values, but datafrom this study as well as those from Tremaine and Froelich (2013) and Day and Henderson (2013) suggest that [Na/Sr] mightplay an important role in Sr incorporation through the potential for Na to outcompete Sr for calcite non-lattice sites. DBa inCD3 (0.086 ± 0.008) is similar to values derived by Day and Henderson (2013) under cave-analogue conditions, whilst DU (0.013 ± 0.002) is almost an order of magnitude lower, possibly due to the unusually slow speleothem growth rates(

Published
2019

4. The environmental and evolutionary history of Lake Ohrid (FYROM/Albania): interim results from the SCOPSCO deep drilling project

Author

Wagner, Bernd, Wilke, Thomas, Francke, Alexander, Albrecht, Christian, Baumgarten, Henrike, Bertini, Adele, Combourieu Nebout, Nathalie, Cvetkoska, Aleksandra, Dapos, Addabbo, Michele, Donders, Timme, H., Föller, Kirstin, Giaccio, Biagio, Grazhdani, Andon, Hauffe, Torsten, Holtvoeth, Jens, Joannin, Sebastien, Jovanovska, Elena, Just, Janna, Kouli, Katerina, Koutsodendris, Andreas, Krastel, Sebastian, Lacey, Jack, H., Leicher, Niklas, Leng, Melanie, J., Levkov, Zlatko, Lindhorst, Katja, Masi, Alessia, Mercuri, Anna, M., Nomade, Sebastien, Nowaczyk, Norbert, Panagiotopoulos, Konstantinos, Peyron, Odile, Reed, Jane M., Regattieri, Eleonora, Sadori, Laura, Sagnotti, Leonardo, Stelbrink, Björn, Sulpizio, Roberto, Tofilovska, Slavica, Torri, Paola, Vogel, Hendrik, Wagner, Thomas, Wagner Cremer, Friederike, Wolff, George, A., Wonik, Thomas, Zanchetta, Giovanni, Zhang, Xiaosen S., Institute for Geology & Mineralogy Cologne, Université de Cologne, Institut Jacques Monod (IJM (UMR_7592)), Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Università degli Studi di Firenze [Firenze], Histoire naturelle de l'Homme préhistorique (HNHP), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Justus-Liebig-Universität Gießen (JLU), Laboratory of Palaeobotany and Palynology, Utrecht University [Utrecht], PaleoEnvironnements et PaleobioSphere (PEPS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM), National and Kapodistrian University of Athens = University of Athens (NKUA | UoA), Paleoenvironmental Dynamics Group, Institute of Earth Sciences, Heidelberg University, Christian-Albrechts-Universität zu Kiel (CAU), NERC Isotope Geosciences Laboratory, British Geological Survey (BGS), Dipartimento di biologia ambientale, Università degli Studi di Roma 'La Sapienza' [Rome], Berkely Geochronology Center, GeoForschungsZentrum - Helmholtz-Zentrum Potsdam (GFZ), Laboratoire Chrono-environnement - UFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), University of Hull [United Kingdom], Dipartimiento di Scienze della Terra, University of Pisa - Università di Pisa, Department of Vegetation Biology, Istituto Nazionale di Geofisica e Vulcanologia - Sezione di Roma (INGV), Istituto Nazionale di Geofisica e Vulcanologia, CIRISIVU Dpto Geomineralogico, Università degli studi di Bari, Helmholtz Centre for Environmental Research (UFZ), Technische Universität Dresden (TUD), Institute of Biochemistry and Molecular Medicine, University of Bern, Università degli Studi di Firenze = University of Florence [Firenze] (UNIFI), Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Université de Perpignan Via Domitia (UPVD), Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement [Lyon] (LGL-TPE), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon), Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement [IRD] : UR226, Centre de l'Asthme et des Allergies [CHU Trousseau], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Laboratorio di Palinologia e Paleobotanica, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), 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), Paléocéanographie (PALEOCEAN), 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), Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome], Università degli studi di Bari Aldo Moro (UNIBA), Helmholtz Zentrum für Umweltforschung = Helmholtz Centre for Environmental Research (UFZ), Water and Earth System Science Competence Cluster (WESS), Max Planck Institute for Chemistry (MPIC), Max-Planck-Gesellschaft, Bruegel, affiliation inconnue, Dipartimento di Scienze della Terra [Pisa], Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Université de Perpignan Via Domitia (UPVD), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Maison des Sciences de l'Homme et de l'Environnement Claude Nicolas Ledoux (MSHE), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Trousseau [APHP], Histoire naturelle de l'Homme préhistorique ( HNHP ), Muséum National d'Histoire Naturelle ( MNHN ) -Université de Perpignan Via Domitia ( UPVD ) -Centre National de la Recherche Scientifique ( CNRS ), Institut des Sciences de l'Evolution de Montpellier ( ISEM ), Université de Montpellier ( UM ) -Institut de recherche pour le développement [IRD] : UR226-Centre National de la Recherche Scientifique ( CNRS ), Institut Pierre Louis d'Epidémiologie et de Santé Publique ( iPLESP ), Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Université Pierre et Marie Curie - Paris 6 ( UPMC ), Assistance publique - Hôpitaux de Paris (AP-HP)-CHU Trousseau [APHP], Christian-Albrechts-Universität zu Kiel ( CAU ), Università degli Studi di Modena e Reggio Emilia [Reggio Emilia] ( UNIMORE ), GeoForschungsZentrum - Helmholtz-Zentrum Potsdam ( GFZ ), Laboratoire Chrono-environnement ( LCE ), Université Bourgogne Franche-Comté ( UBFC ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC ), University of Hull (UNITED KINGDOM), Università di Pisa, Helmholtz Centre for Environmental Research ( UFZ ), Water and Earth System Science Competence Cluster ( WESS ), Max Planck Institute for Chemistry ( MPIC ), Dipartimento di Scienze della Terra ( Università di Pisa ), Università degli Studi di Firenze = University of Florence [Firenze], Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Muséum national d'Histoire naturelle (MNHN), Universität Bern [Bern] (UNIBE), Università degli Studi di Firenze = University of Florence (UniFI), Muséum national d'Histoire naturelle (MNHN)-Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Chrono-environnement (UMR 6249) (LCE), Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement [IRD] : UR226-Centre National de la Recherche Scientifique (CNRS), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), 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)-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), Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome] (UNIROMA), Università degli studi di Bari Aldo Moro = University of Bari Aldo Moro (UNIBA), Coastal dynamics, Fluvial systems and Global change, Palaeoecology, Palaeo-ecologie, Centre National de la Recherche Scientifique ( CNRS ) -Université de Perpignan Via Domitia ( UPVD ) -Muséum National d'Histoire Naturelle ( MNHN ), Université Bourgogne Franche-Comté ( UBFC ) -Université de Franche-Comté ( UFC ) -Centre National de la Recherche Scientifique ( CNRS ), Maison des Sciences de l'Homme et de l'Environnement Claude Nicolas Ledoux ( MSHE ), Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC ), Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement [Lyon] ( LGL-TPE ), École normale supérieure - Lyon ( ENS Lyon ) -Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers ( INSU - CNRS ) -Centre National de la Recherche Scientifique ( CNRS ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École pratique des hautes études (EPHE), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), UMR 7194 Histoire naturelle de l'Homme préhistorique (HNHP), and Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)

Subjects
[ SDU.OCEAN ] Sciences of the Universe [physics]/Ocean, Atmosphere, 010504 meteorology & atmospheric sciences, Pleistocene, Environmental change, Lake Ohrid, Evolution, [SDE.MCG]Environmental Sciences/Global Changes, lcsh:Life, Climate change, 580 Plants (Botany), 010502 geochemistry & geophysics, 01 natural sciences, Ecology, Evolution, Behavior and Systematics, Earth-Surface Processes, Behavior and Systematics, lcsh:QH540-549.5, [ SDU.ENVI ] Sciences of the Universe [physics]/Continental interfaces, environment, ecology, evolution, behavior and systematics, earth-surface processes, Glacial period, Tephra, Paleoclimatology, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, 550 Earth sciences & geology, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, Ecology, lcsh:QE1-996.5, 15. Life on land, lcsh:Geology, lcsh:QH501-531, Oceanography, climate variation, environmental change, glacial-interglacial cycle, Quaternary, Lake Ohrid, Macedonia [Southern Europe], 13. Climate action, Interglacial, Deed drilling, Physical geography, Tephrochronology, lcsh:Ecology, Quaternary, Geology
Abstract

This study reviews and synthesises existing information generated within the SCOPSCO (Scientific Collaboration on Past Speciation Conditions in Lake Ohrid) deep drilling project. The four main aims of the project are to infer (i) the age and origin of Lake Ohrid (Former Yugoslav Republic of Macedonia/Republic of Albania), (ii) its regional seismotectonic history, (iii) volcanic activity and climate change in the central northern Mediterranean region, and (iv) the influence of major geological events on the evolution of its endemic species. The Ohrid basin formed by transtension during the Miocene, opened during the Pliocene and Pleistocene, and the lake established de novo in the still relatively narrow valley between 1.9 and 1.3 Ma. The lake history is recorded in a 584 m long sediment sequence, which was recovered within the framework of the International Continental Scientific Drilling Program (ICDP) from the central part (DEEP site) of the lake in spring 2013. To date, 54 tephra and cryptotephra horizons have been found in the upper 460 m of this sequence. Tephrochronology and tuning biogeochemical proxy data to orbital parameters revealed that the upper 247.8 m represent the last 637 kyr. The multi-proxy data set covering these 637 kyr indicates long-term variability. Some proxies show a change from generally cooler and wetter to drier and warmer glacial and interglacial periods around 300 ka. Short-term environmental change caused, for example, by tephra deposition or the climatic impact of millennial-scale Dansgaard–Oeschger and Heinrich events are superimposed on the long-term trends. Evolutionary studies on the extant fauna indicate that Lake Ohrid was not a refugial area for regional freshwater animals. This differs from the surrounding catchment, where the mountainous setting with relatively high water availability provided a refuge for temperate and montane trees during the relatively cold and dry glacial periods. Although Lake Ohrid experienced significant environmental change over the last 637 kyr, preliminary molecular data from extant microgastropod species do not indicate significant changes in diversification rate during this period. The reasons for this constant rate remain largely unknown, but a possible lack of environmentally induced extinction events in Lake Ohrid and/or the high resilience of the ecosystems may have played a role.

Published
2017

5. First integrated tephrochronological record for the last ~190 kyr from the Fucino Quaternary lacustrine succession, central Italy

Author

Giaccio, Biagio, Niespolo, Elizabeth M., Pereira, Alison, Nomade, Sebastien, Renne, Paul R., Albert, Paul G., Arienzo, Ilenia, Regattieri, Eleonora, Wagner, Bernd, Zanchetta, Giovanni, Gaeta, Mario, Galli, Paolo, Mannella, Giorgio, Peronace, Edoardo, Sottili, Gianluca, Florindo, Fabio, Leicher, Niklas, Marra, Fabrizio, Tomlinson, Emma L., Istituto di Geologia Ambientale e Geoingegneria, Consiglio Nazionale delle Ricerche (CNR), Department of Earth and Planetary Science [UC Berkeley] (EPS), University of California [Berkeley], University of California-University of California, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), 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), Ecole française de Rome (EFR), Muséum national d'Histoire naturelle (MNHN), Università degli Studi di Ferrara (UniFE), Paléocéanographie (PALEOCEAN), 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), Berkeley Geochronology Center (BGC), University of Oxford [Oxford], Osservatorio Vesuviano, Istituto Nazionale di Geofisica e Vulcanologia - Sezione di Napoli (INGV), Istituto Nazionale di Geofisica e Vulcanologia-Istituto Nazionale di Geofisica e Vulcanologia, Universität zu Köln, Dipartimento di Scienze della Terra [Pisa], University of Pisa - Università di Pisa, Italian National agency for new technologies, Energy and sustainable economic development [Frascati] (ENEA), Istituto Nazionale di Geofisica e Vulcanologia - Sezione di Bologna (INGV), Istituto Nazionale di Geofisica e Vulcanologia, Istituto Nazionale di Geofisica e Vulcanologia - Sezione di Roma (INGV), Trinity College Dublin, Istituto di Geologia Ambientale e Geoingegneria (IGAG), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), University of California [Berkeley] (UC Berkeley), University of California (UC)-University of California (UC), 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), Università degli Studi di Ferrara = University of Ferrara (UniFE), 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), University of Oxford, and Universität zu Köln = University of Cologne

Subjects
Archeology, 010504 meteorology & atmospheric sciences, Evolution, 40Ar/39Ar geochronology, Trachyte, Pyroclastic rock, 010502 geochemistry & geophysics, 01 natural sciences, Central Mediterranean, Sr-Nd isotopes, tephrochronology, global and planetary change, archeology, ecology, evolution, behavior and systematics, geology, Paleontology, Behavior and Systematics, [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, Tephra, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, Ecology, Evolution, Behavior and Systematics, 0105 earth and related environmental sciences, Tephrochronology, Global and Planetary Change, Archeology (arts and humanities), Geology, geography, geography.geographical_feature_category, Ecology, 40 39 Ar/ Ar geochronology, Volcano, 13. Climate action, Sedimentary rock, Quaternary, Chronology
Abstract

International audience; We present the first integrated tephrochronological study (major and trace elemental glass composition, Sr and Nd isotope analyses, and 40Ar/39Ar dating) for the last one tenth (∼82 m) of the ∼900 m-thick Quaternary lacustrine succession of the Fucino Basin, the largest and probably only Central Apennine intermountain tectonic depression that hosts a continuous lacustrine succession documenting the Plio-Quaternary sedimentary history up to historical times. Major element glass compositions, determined using a wavelength-dispersive electron microprobe (WDS-EMPA), yielded the geochemical fingerprinting needed for a reliable identification of most of the 23 stratigraphically ordered tephra layers under investigation. These include tephra from Italian volcanoes such as Campi Flegrei, Etna, Colli Albani, Ischia, Vico, Sabatini, and undefined volcanic sources in the Neapolitan area and Latium region. The recognition of key Mediterranean marker tephra layers (e.g. X-5 and X-6) is supported by trace element data acquired by Laser Ablation Inductively Couple Plasma Mass Spectrometry (LA-ICP-MS). The Sr and Nd isotope compositions of selected layers where also determined for circumscribing the volcanic source of distal tephra and for supporting correlations with individual eruptive units. We also propose a new, more expeditious covariation diagram (CaO/FeOtot vs Cl) for identifying the volcanic source of trachytic to phonolitic and tephrytic to phonolitic tephra, that are the most common compositions of pyroclastic rocks from volcanoes of Campania and Latium regions. Finally, we present five new 40Ar/39Ar age determinations, including a new, analytically well-supported, and more precise 40Ar/39Ar age for the widespread Y-7 tephra, and the first 40Ar/39Ar age determinations for one tephra from the Sabatini volcanic district (∼126 ka) and one tephra from Neapolitan volcanic area (Campi Flegrei?; ∼159 ka). These newly dated tephra are widely dispersed (e.g. Monticchio, southern Italy, Adriatic Sea and Lake Ohrid, Macedonia-Abania) and have thus the potential to become important Mediterranean MIS 5 and MIS 6 tephrochronological markers. Altogether the new geochemical data and 40Ar/39Ar ages precisely constrain the chronology of the investigated Fucino succession spanning the last ∼190 ka. In light of these results and by considering that this sedimentary succession possibly extends back to ∼2 Ma, Fucino is likely to provide a very long, continuous tephrostratigraphic record for the Mediterranean area and become a key node in the dense network of tephra correlations of this region.

Published
2017

6. A multi-proxy record of MIS 11–12 deglaciation and glacial MIS 12 instability from the Sulmona basin (central Italy)

Author

Regattieri, Eleonora, Giaccio, Biagio, Galli, Paolo, Nomade, Sebastien, Peronace, Edoardo, Messina, Paolo, Sposato, Andrea, Boschi, Chiara, Gemelli, Maurizio, Dipartimiento di Scienze della Terra, University of Pisa - Università di Pisa, 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), Paléocéanographie (PALEOCEAN), 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), Processus d'Activation Sélective par Transfert d'Energie Uni-électronique ou Radiatif (UMR 8640) (PASTEUR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Département de Chimie - ENS Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), 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), École normale supérieure - Paris (ENS Paris), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris)

Subjects
Archeology, Ice-sheet dynamics, Lacustrine succession, 010504 meteorology & atmospheric sciences, Stable isotope, Lacustrine succession, MIS 12–11, Tephrostratigraphy, Central Italy, stable isotope, lacustrine succession, MIS 12e11, tephrostratigraphy, Central Italy, 010502 geochemistry & geophysics, 01 natural sciences, Paleontology, Deglaciation, 14. Life underwater, Glacial period, Stadial, Tephrostratigraphy, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, Ecology, Evolution, Behavior and Systematics, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, Polar front, MIS 12–11, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, Global and Planetary Change, Northern Hemisphere, Geology, Last Glacial Maximum, Stable isotope, Oceanography, MIS 12-11, 13. Climate action, Clastic rock
Abstract

A multi-proxy record (lithology, XRF, CaCO 3 content, carbonate δ 18 O and δ 13 C) was acquired from a sediment core drilled in the intermountain Sulmona basin (central Italy). Tephrostratigraphic analyses of three volcanic ash layers ascribe the investigated succession to the MIS 12-MIS 11 period, spanning the interval ca. 500–410 ka. Litho-pedo facies assemblage indicates predominant lacustrine deposition, interrupted by a minor sub-aerial and lake low stand episode. Variations in major and minor elements concentrations are related to changes in the clastic input to the lake. The oxygen isotopic composition of carbonate (δ 18 O c ) intervals is interpreted mainly as a proxy for the amount of precipitation in the high-altitude catchment of the karst recharge system. The record shows pronounced hydrological variability at orbital and millennial time-scales, which appears closely related to the Northern Hemisphere summer insolation pattern and replicates North Atlantic and west Mediterranean Sea Surface Temperature (SST) fluctuations. The MIS 12 glacial inception is marked by an abrupt reduction of precipitation, lowering of the lake level and enhanced catchment erosion. A well-defined and isotopically prominent interstadial with increased precipitation maybe related to insolation maxima-precession minima at ca. 465 ka. This interstadial ends abruptly at ca. 457 ka and it is followed by a phase of strong short-term instability. Drastic lake-level lowering and enhanced clastic flux characterized the MIS 12 glacial maximum. Lacustrine deposition restarted about 440 ka ago. The MIS 12–MIS 11 transition is characterized by a rapid increase in the precipitation, lake-level rise and reduction in the clastic input, interrupted by a short and abrupt return to drier conditions. Comparison with marine records from the Iberian margin and western Mediterranean suggests that major events of ice rafted debris deposition, related to southward migrations of the polar front, match the harshest periods in central Italy. This indicates strong teleconnections between Northern hemisphere ice sheet dynamics, North Atlantic oceanic conditions and Mediterranean continental hydrology.

Published
2016

7. Hydrological variability over the Apennines during the Early Last Glacial precession minimum, as revealed by a stable isotope record from Sulmona basin, Central Italy

Author

Regattieri, Eleonora, Giaccio, Biagio, Zanchetta, Giovanni, Drysdale, Russell N., Galli, Paolo, Nomade, Sebastien, Peronace, Edoardo, Wulf, Sabine, Dipartimiento di Scinze della Terra, University of Pisa - Università di Pisa, Dipartimiento di Scienze della Terra, Istituto di Geologia Ambientale e Geoingegneria (IGAG), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), 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), Paléocéanographie (PALEOCEAN), 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), Istituto di Geologia Ambientale e Geoingegneria, Consiglio Nazionale delle Ricerche (CNR), 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), Università di Pisa, Università degli Studi di Milano-Bicocca, Università degli Studi di Milano-Bicocca [Milano], Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] ( LSCE ), and Université de Versailles Saint-Quentin-en-Yvelines ( UVSQ ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Paris-Saclay-Centre National de la Recherche Scientifique ( CNRS )

Subjects
arts and humanities, [ SDU.OCEAN ] Sciences of the Universe [physics]/Ocean, Atmosphere, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, lacustrine succession, precession, sapropel, stable isotope, Sulmona basin, tephrostratigraphy, earth and planetary sciences, paleontology, [ SDU.ENVI ] Sciences of the Universe [physics]/Continental interfaces, environment, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, ComputingMilieux_MISCELLANEOUS
Abstract

A multi-proxy record was acquired from a Late Pleistocene lacustrine succession in the Sulmona basin, central Italy. Previous and new tephrostratigraphic analyses of six volcanic ash layers constrain the investigated interval to between 92.3 and 115.0 ka. The δ18O composition is interpreted as a proxy for precipitation amount in the high-altitude catchment of the karst recharge system. The oxygen record shows millennial variability that is consistent with Greenland Interstadials GI25–23 and North Atlantic cold events C24–C22, indicating a strong Mediterranean–North Atlantic climate teleconnection. However, while no appreciable isotopic difference between the three interstadials is revealed by the Greenland record, the Sulmona section reveals a wetter climate during GI24 compared with GI23 and GI25. Comparison of our record with speleothem and pollen data from central and southern Italy suggests higher seasonality of the precipitation (wet winter–dry summer) for GI24, which matches a precession minimum. The wettest period recorded at Sulmona is also coincident with the deposition of Sapropel S4 in the Tyrrhenian Sea, suggesting a teleconnection between a higher seasonality in the western Mediterranean and strengthening of the boreal monsoon system.

Published
2015

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