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2. In situ mapping of growth lines in the calcitic prismatic layers of mollusc shells using X-ray absorption near-edge structure (XANES) spectroscopy at the sulphur K-edge

Author

Dauphin, Y., Cuif, J.P., Doucet, J., Salome, M., Susini, J., and Williams, C.T.

Subjects
Marine biology -- Research, Sulfur -- Physiological aspects, Shells -- Growth, Shells -- Composition, Electron microscopy -- Usage, Calcite -- Physiological aspects, Magnesium -- Physiological aspects, Company growth, Biological sciences
Abstract

The microstructure and composition, including chemical speciation of sulphur (S), of two mollusc shells were investigated using a combination of scanning electron microscopy, X-ray absorption near-edge structure spectroscopy (XANES) and electron probe microanalysis (EPMA). The shell of Pinna is composed of monocrystalline, and Pinctada, of polycrystalline, calcite prisms separated by organic-rich walls. Sulphur speciation information from XANES spectra using a scanning X-ray microscope showed that the protein S content of the interprismatic walls is higher than the S[O.sup.4] content, whereas the reverse is true for the intraprismatic structures. High-spatial-resolution XANES maps for the different S species across adjacent calcite prisms confirm their distinctive distributions in the molluscan shells and illustrate the presence of narrow, submicron transverse growth features. On a larger scale, a series of wider growth zones, incorporating the submicron zones, are aligned parallel to each other and cross-cut many calcite prisms. EPMA element maps for magnesium (Mg) and S demonstrate that these growth increments are compositionally zoned, comprising alternating layers of high mineral (Mg-rich) and high organic (S-rich) components. Additionally, these maps confirm that the organic interprismatic walls have lower Mg and higher S than the intraprismatic structures.

Published
2003

5. Structure and composition of the boundary zone between aragonitic crossed lamellar and calcitic prism layers in the shell Concholepas concholepas (Mollusca, Gastropoda)

Author

Dauphin, Y., Cuif, J.P., Cotte, M., Salomé, M., Géosciences Paris Sud (GEOPS), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), European Synchrotron Radiation Facility (ESRF), and CRINON, Evelyne

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, sense organs
Abstract

International audience; Mollusc shells are composed of two or three layers. The main layers are well-studied, but the structural and chemical changes at their boundaries are usually neglected. A microstructural, mineralogical, and biochemical study of the boundary between the inner crossed lamellar and outer prismatic layers of the shell of Concholepas concholepas showed that this boundary is not an abrupt transition. Localized structural and chemical analyses showed that patches of the inner aragonitic crossed lamellar layer persist within the outer calcitic prismatic layer. Moreover, a thin aragonitic layer with a fibrous structure is visible between the two main layers. A three-step biomineralization process is proposed that involves changes in the chemical and biochemical composition of the last growth increments of the calcite prisms. The changes in the secretory process in the mantle cells responsible for the shell layer succession are irregular and discontinuous.

Published
2012

6. Colour or no coulour in the juvenile shell of the black lip pearl oyster, Pinctada margaritifera ?

Author

Trinkler, N., Le Moullac, G., Cuif, J.P., Cochennec-Laureau, N., Dauphin, Y., Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre Océanol. Pacifique, Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), and Laboratoire de Biotechnologie et de Qualité de la Perle (LBQP)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Abstract

International audience; Pinctada margaritifera mollusc is cultivated in French Polynesia for the production of black pearls. For this study, the colour of juvenile samples (48 days old) was investigated in the visible range spectra (430-700 nm) using spectrophotometry. A first measurement was done with the soft parts still inside the shell (entire animal). Then, the soft parts were removed in order to do a second measurement on the growing edge of the shell. Comparison of the two measurements shows that the estimation of the living animal colour with unaided eye is strongly influenced by the colour of the soft parts. The use of the International Commission on Illumination (ISI) chromaticity diagram shows that at this growth stage, the shells are "white"; i.e. present no absorptions to the visible part. Multivariate statistical analyses based on the intensities of 6 wavelengths show that the shell colour is less variable than the colours of the entire animals. Wavelength intensities of the shells are similar, so no colour trend is visible. On the other hand, the colours of the entire animals are darker, and more variable. At this growth stage, the shell colour is not predictable for a potential selection of receiver or donor.

Published
2012

7. Couches coquillières de l'huître perlière Pinctada margaritifera : correspondance entre microstructure et composition

Author

Farre, B., Brunelle, A., Laprévote, O., Cuif, J.P., Williams, C.T., Dauphin, Y., Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie des Substances Naturelles (ICSN), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Dpt of Mineral & Palaeontology, and The Natural History Museum

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Published
2011

8. What pearls tell us about biomineralization

Author

Cuif, J.P., CRINON, Evelyne, Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Published
2011

9. The converging results of microstructural analysis and molecular phylogeny: consequence for the overall evolutionary scheme of post-Paleozoic corals and the concepts of Scleractinia

Author

Cuif, J.P., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2010

10. Occurence and diversity of lipids in modern coral skeletons

Author

Farre, B., Cuif, J.P., Dauphin, Y., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Abstract

International audience; Coral skeletons are composite acellular structures, in which organic macromolecules are intimately associated with mineral phases. Previous studies focussed on proteins and sugars of the soluble organic matrices extracted from the skeletons. Here we report the occurrence of diverse lipids which were extracted from the aragonitic skeletons of seven modern coral species. Using thin layer chromatography, we show that these lipids differ in quantity and composition between the species. Higher proportions of sterols and sterol esters in skeleton extracts as compared to a much higher abundance of waxes and triglycerides in previously studied extracts from scleractinian soft tissues suggest a specific, although not yet determined, role in biomineralisation. The occurrence of intraskeletal lipids along with other organic components should also be taken into account when using coral skeletons as bone allografts, as well as in fossilisation processes. (C) 2010 Elsevier GmbH. All rights reserved.

Published
2010

11. Biomineralization in Mollusc shells

Author

Dauphin, Y., Cuif, J.P., Salomé, M., Williams, C.T., Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), European Synchrotron Radiation Facility (ESRF), Dpt of Mineral & Palaeontology, and The Natural History Museum

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2009

12. Les rapports Mg/Ca et Sr/Ca des coraux profonds (Lophelia pertusa) : distribution en fonction des moicrostructures coralliennes et potentialité d'un thermomètre chimique des eaux de sub-surfaces et intermédiaires

Author

Douarin, M., Blamart, D., Rollion-Bard, C., Cuif, J.P., Meibom, A., Juillet-Leclerc, A., Robin, Eric, Callion, N., Douville, E., Correge, T., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Published
2008

13. Distribution of chemical components in coral skeletons provides evidence for an overall control of crystallization at a submicrometer scale

Author

Baronnet, Alain, Cuif, J.P., Dauphin, Y., Farre, B., Williams, C.T., Université Paul Cézanne - Aix-Marseille 3, Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2008

14. Lipids of the mollusk shells

Author

Farre, B., Dauphin, Y., Cuif, J.P., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2008

16. Crystallographic consttraints on the structure and growth of seashell biocrystals

Author

Baronnet, Alain, Cuif, J.P., Dauphin, Y., Bruet, B., Grauby, D., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Published
2008

17. Oxygen isotope equilibrium in brachiopod shells in context of biological control

Author

Cusack, M., Perez-Huerta, A., Chung, P., Parkinson, D., Dauphin, Y., Cuif, J.P., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2008

18. Boron isotopic composition correlates with ultra-structure in a deep-sea coral Lophelia pertusa : Implications for biomineralization and paleo-pH

Author

Blamart, D., Rollion-Bard, C., Meibom, A., Cuif, J.P., Juillet-Leclerc, A., Dauphin, Y., Douarin, M., Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and CRINON, Evelyne

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2007

19. Microstructures and compositions of multilayered shells of Haliotis (Mollusca, Gastropoda). Biomineralization: from paleontology to materials science

Author

Dauphin, Y., Williams, C.T., Salomé, M., Susini, J., Cuif, J.P., Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and Edi. Univ. Santiago (Chile)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2007

20. The biochemically-driven nanoscale crystallization of Ca-carbonate microstructural units : a possible origin of the long standing vital effects enigma

Author

Cuif, J.P., Dauphin, Y., Biocalc Team, The, Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and CRINON, Evelyne

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Published
2007

21. High variability in boron isotopes of deep-sea corals (Lophelia pertusa) : implications for biomineralization processes and for paleo-CO2 reconstruction

Author

Blamart, D., Rollion-Bard, C., Cuif, J.P., Meibom, A., Juillet-Leclerc, A., Dauphin, Y., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2007

23. Chapter 10: Recent Advances in Coral Biomineralization with Implications for Paleo-Climatology: A Brief Overview

Author

Watanabe, T., Juillet-Leclerc, A., Cuif, J.P., Rollion-Bard, C., Dauphin, Y., Reynaud, S., CRINON, Evelyne, Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2007

25. Recent advances in coral biomineralization with implications for paleo-climatology : a brief overview

Author

Watanabe, T., Juillet-Leclerc, A., Cuif, J.P., Rollion-Bard, C., Dauphin, Y., Reynaud, S., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology, ComputingMilieux_MISCELLANEOUS
Abstract

The tropical oceans drive climatic phenomena such as the El Niño-southern oscillation (ENSO) and the Asian–Australian monsoon, which have global scale impacts. In order to understand future climatic developments, it is essential to understand how the tropical climate has developed in the past, on both short and longer timescales. However, good instrumental records are limited to the last few decades. The oxygen isotopic (δ18O) composition and strontium/calcium (Sr/Ca) ratio of massive corals have been widely used as proxies for past changes in sea surface temperature (SST) of the tropical and subtropical oceans, because the geochemistry of the skeleton is believed to vary as a function of several environmental parameters (such as seawater temperature, salinity, light, …). However, recent microanalytical studies have revealed large amplitude variations in Sr/Ca and oxygen isotopic composition in coral skeletons; variations that cannot be ascribed to changes in SST or in salinity. Such micro- and nanometer scale studies of geochemical variations in coral skeletons are still few and somewhat scattered in terms of the species studied and the problems addressed. But collectively they show the great potential for determining chemical variations at length scales of direct relevance to the biomineralization process. For example, it is now possible to measure geochemical variations within the two basic, micrometer-sized building blocks of the coral skeleton: Early mineralization zones (EMZ) and aragonite fibres. Such micro- and nanometer scale observations, in combination with controlled laboratory culturing of corals, hold the promise of yielding important new insights into the various biomineralization processes that may affect the chemical and isotopic composition of the skeletons. One aim of these efforts is to better understand the elemental and isotopic fractionation mechanisms in order to improve the conversion of the geochemical variability into environmental changes.

Published
2007

27. Correlation of boron isotopic composition with ultrastructure in the deep-sea coral Lophelia pertusa : implications for biomineralization and paleo-pH

Author

Blamart, D., Rollion-Bard, C., Meibom, A., Cuif, J.P., Dauphin, Y., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2007

28. Distribution des protéoglycanes minéralisantes dans les biocristaux calcaires

Author

Cuif, J.P., Dauphin, Y., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2006

29. Biomineralization strategy(ies) : the AFM contributions to a bibliographic state-of-art

Author

Mercury, L., Dauphin, Y., Cuif, J.P., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2006

30. Persistent organic components in heated biogenic aragonites : implications for palaeoenvironmental reconstructions

Author

Dauphin, Y., Cuif, J.P., Massard, P., CRINON, Evelyne, Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2006

31. Microstructures and chemical composition of giant avian eggshells

Author

Dauphin, Y., Cuif, J.P., Salomé, M., Susini, J., Williams, C.T., Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and CRINON, Evelyne

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2006

32. Microstructure et composition des tests de Mollusques : le cas du gastéropode Haliotis

Author

Dauphin, Y., Cuif, J.P., Williams, C.T., Salomé, M., Susini, J., CRINON, Evelyne, Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Published
2006

34. Critères de validité des informations paléoenvironnementales : distribution des phases organiques minéralisantes et préservation des nanostructures

Author

Blamart, D., Cuif, J.P., Dauphin, Y., Rollion-Bard, C., Salomé, M., Susini, J., Williams, C.T., CRINON, Evelyne, Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2006

35. heterogeneity of chemical compositions in coral skeletons : investigations of skeletal calcification and implications for coral paleothermometer

Author

Watanabe, T., Juillet-Leclerc, A., Cuif, J.P., Dauphin, Y., Sano, Y., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2006

36. De la morphologie à la nanostructure des biominéralisations calcaires : accroissement de la résolution analytique et conséquences sur leur interprétation

Author

Cuif, J.P., CRINON, Evelyne, Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Published
2006

37. Organo-mineral patterns at the nanometer-scale in mollusc and coral skeletons : implications of the layered growth mode for mineralization process and environment recording

Author

Cuif, J.P., Dauphin, Y., Meibom, A., Guzman, N., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Published
2005

38. The relative impact of vital effect and environmental factors on the coral skeleton oxygen isotopic ratio

Author

Juillet-Leclerc, A., Reynaud, J.-Y., Rollion-Bard, C., Cuif, J.P., Dauphin, Y., Blamart, D., Ferrier-Pages, C., Allemand, D., Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre Science Monaco, and CRINON, Evelyne

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

40. The two-step mode of growth in the Scleractinian coral skeletons from the micrometre to the overall scale

Author

Cuif, J.P., Dauphin, Y., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

41. Assessing the structural and compositional changes in ancient biogenic Ca-carbonates : the aragonite skeletons of Triassic corals as a case-study of measurement reliability

Author

Cuif, J.P., Blamart, D., Dauphin, Y., Meibom, A., Rollion-Bard, C., Salomé, M., Susini, J., Williams, C.T, CRINON, Evelyne, Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

42. Subdaily geochemical and microstructural study on the Chilean coastal gasteropode Concholepas concholepas : towards a high resolution proxy calibration

Author

Lazareth, C.E., Guzman, N., Poitrasson, F., Cuif, J.P., Ortlieb, L., CRINON, Evelyne, Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

43. Speciation and distribution of sulfur in a mollusk shell as revealed by in situ maps using X-ray absorption near-edge structure (XANES) spectroscopy at the SK-edge

Author

Dauphin, Y., Cuif, J.P., Salome, C., Susini, J., CRINON, Evelyne, Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

44. Isotopic and trace elemental distributions in daily growth lines of giant clam

Author

Watanabe, T., Meibom, A., Cuif, J.P., Yokoyama, K., Shirai, K., Juillet-Leclerc, A., Nakamori, T., Sano, Y., Oba, T., Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and CRINON, Evelyne

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

45. An experimental approach of the 'vital effect' in calcareous biominerals, based on crystallization patterns and process within micron-scale skeleton growth layers

Author

Cuif, J.P., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

46. Isotopic and trace elemental distributions in daily growth lines of giant clam

Author

Watanabe, T., Meibom, A., Cuif, J.P., Yokoyama, K., Nakamori, T., Oba, T., Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and CRINON, Evelyne

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Published
2004

47. Dissolution of calcitic prisms of Pinna nobilis : biomineral composition and kinetics

Author

Mercury, L., Cuif, J.P., Massard, P., Dauphin, Y., Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and CRINON, Evelyne

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Published
2004

48. A rapid calibration procedures for mollusc and coral proxies based on recognition of the environment recording unit

Author

Cuif, J.P., Dauphin, Y., Guzman, N., Lazareth, C.E., Ortlieb, L., CRINON, Evelyne, Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Abstract

RSTGV-A-148 & oral presentation

Published
2004

49. Heterogeneity of chemical compositions in coral skeletons: Investigation of skeletal calcification and implications for coral thermometer

Author

Watanabe, T., Juillet-Leclerc, A., Cuif, J.P., Meibom, A., Dauphin, Y., Blamart, D., 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), 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), and 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)

Subjects
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2004

50. C and O isotopes in deep-sea corals (Lophelia pertusa) measured by ion microprobe

Author

Blamart, D., Rollion-Bard, C., Cuif, J.P., Juillet-Leclerc, A., Lutringer, A., van Weering, T., and Henriet, J.P.

Abstract

We have determined the d18O and d13C values of azooxanthellate corals (Lophelia pertusa ) at a micrometre scale using an ion microprobe (SIMS-Secondary Ion Mass Spectrometry). Coral skeletons are composed of two different microstructures:Centres of calcification, and surrounding fibres.In Lophelia pertusa centres of calcification are large (50µm) and arranged in lines of centres of calcification. Our results show that centres of calcification in Lophelia pertusa have a restricted range of variation in d18O (-2.8 ± 0.3‰ (V-PDB)), and a larger range in d13C (14.3 to 10.9‰ (V-PDB)). Surrounding skeletal fibres exhibit large isotopic variation both for C and O (up to 12‰), and d13C and d18O are positively correlated. The C and O isotopic compositions of the centre of calcification deviate from this linear trend at the lightest d18O values of the surrounding fibres. The variation of d18O at a micrometre scale is probably the result of two processes: An isotopic equilibrium calcification with at least 1 pH unit variation in the calcification fluid as indicated by direct measurements of coelenteron pH in the coral Galaxea fascicularis (Al-Horani et al., 2003), and a kinetic fractionation.The d13 apparent disequilibrium in Lophelia pertusa may be the result of mixing between depleted d13C metabolic CO2 (respiration) and DIC coming directly from seawater.

Published
2003

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