Search

Your search keyword '"Badaut-Trauth, D."' showing total 7 results
Start Over Author "Badaut-Trauth, D."
7 results on '"Badaut-Trauth, D."'

2. The role of irion minerals in laminae formation in Late Pleistocene sédiments of the Caspian Sea

Author

Tudryn, A., Giannesini, P.J., Guichard, F., Badaut-Trauth, D., Tucholka, P., Boomer, I., Géosciences Paris Sud (GEOPS), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude de la Matière Extraterrestre / UMS Nano-analyses (LEME / UNA), Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), 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), School of Geography, Earth and Environmental Sciences [Birmingham], University of Birmingham [Birmingham], 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 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)

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

International audience; The 995 cm long sediment core was collected from the Central basin of the Caspian Sea. The sedimentary sequence, which covers the Late Pleistocene and Holocene, is marked in its Late Pleistocene section by well-developed black and grey/brownish laminae, which promptly disappear under oxidising conditions. Studies of granulometry, major elements, carbonate and organic matter content, and magnetic parameters, were conducted at laminae scale. In non-magnetic parameters, only sulphur clearly changes between black and grey/brownish laminae. Magnetic parameters indicate the presence of high contents of iron sulphide (greigite) in black laminae, while low contents of iron oxide (magnetite) are detected in grey/brownish laminae. The lamination is due to early diagenesis in sediment just below the sea bed, related to the oxygenation state of the bottom water. Under poorly oxygenated conditions, greigite is formed in anoxic sediment, with increased oxygenation, detrital magnetite is preserved. Broadly similar processes were described from the Southern Caspian Sea basin. During the Late Pleistocene, both basins were subjected to the same, rhythmic ventilation of bottom waters. Efficient ventilation is most probably related to the harshness of the winter (cold/mild winters) and thus production of more or less cold, dense descending waters, and the content of fresh water supply from the catchment area. These two processes can act annually, as well as on a longer time scale.

Published
2014

3. Mineral magnetic record of Late Quaternary Caspian Sea sediments

Author

Tudryn, A., Giannesini, P.J., Badaut-Trauth, D., Guichard, F., Tucholka, 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), Laboratoire d'Etude de la Matière Extraterrestre / UMS Nano-analyses (LEME / UNA), Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Groupe d'étude de l'atmosphère météorologique (CNRM-GAME), and Institut national des sciences de l'Univers (INSU - CNRS)-Météo France-Centre National de la Recherche Scientifique (CNRS)

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

4. The glacial-post glacial transition in the southern Caspian Sea

Author

Chalie, F., Escudie, A. -S, Badaut-Trauth, D., Blanc, G., Marie-Madeleine Blanc-Valleron, Brigault, S., Desprairies, A., Ferronsky, V. I., Giannesini, P. -J, Gibert, E., Guichard, F., Jelinowska, A., Massault, M., Melieres, F., Tribovillard, N., Tucholka, P., Gasse, F., Aptel, Florence, Centre des Faibles Radioactivités, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)

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

International audience

Published
1997

6. Mineral magnetic study of Late Quaternary South Caspian Sea sediments: palaeoenvironmental implications.

Author

Jelinowska, A., Tucholka, P., Guichard, F., Lefèvre, I., Badaut-Trauth, D., Chalie, F., Gasse, F., Tribovillard, N., and Desprairies, A.

Subjects
QUATERNARY stratigraphic geology, SEDIMENTS
Abstract

Examines the mineral magnetic study of Late Quaternary South Caspian Sea sediments. Domination of greigite concentrations on the sediments; Interpretation of the variation of magnetic parameters in terms of greigite grain-size variation; Relation of the variation on the water salinity.

Published
1998
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results