Zobrazeno 1 - 10
of 83
pro vyhledávání: '"François Gauthier-Lafaye"'
Autor:
Abderrazak El Albani, Stefan Bengtson, Donald E Canfield, Armelle Riboulleau, Claire Rollion Bard, Roberto Macchiarelli, Lauriss Ngombi Pemba, Emma Hammarlund, Alain Meunier, Idalina Moubiya Mouele, Karim Benzerara, Sylvain Bernard, Philippe Boulvais, Marc Chaussidon, Christian Cesari, Claude Fontaine, Ernest Chi-Fru, Juan Manuel Garcia Ruiz, François Gauthier-Lafaye, Arnaud Mazurier, Anne Catherine Pierson-Wickmann, Olivier Rouxel, Alain Trentesaux, Marco Vecoli, Gerard J M Versteegh, Lee White, Martin Whitehouse, Andrey Bekker
Publikováno v:
PLoS ONE, Vol 9, Iss 6, p e99438 (2014)
The Paleoproterozoic Era witnessed crucial steps in the evolution of Earth's surface environments following the first appreciable rise of free atmospheric oxygen concentrations ∼2.3 to 2.1 Ga ago, and concomitant shallow ocean oxygenation. While mo
Externí odkaz:
https://doaj.org/article/d53a6e1d647a4765b32402f59ee5e9e0
Autor:
François Gauthier-Lafaye, Jean-Luc Probst, Jules Remy Ndam Ngoupayou, G. E. Takem, Jean-Loup Boeglin, Georges Emmanuel Ekodeck, Josephine Ndjama, Jefferson Mortatti, Gustave Raoul Nkoue Ndondo, Frédéric Brunet, Jean-Jacques Braun
Publikováno v:
Aquatic Geochemistry
Aquatic Geochemistry, Springer Verlag, 2020, ⟨10.1007/s10498-020-09386-8⟩
Aquatic Geochemistry, Springer Verlag, 2020, ⟨10.1007/s10498-020-09386-8⟩
International audience; Stream carbon fluxes are one of the major components in the global C cycle, yet the discrimination of the various sources of stream carbon remains to a large extent unclear and less is known about the biogeochemical transforma
Autor:
Grace Guiyeligou, Jérémie Aubineau, François Gauthier-Lafaye, Jean-Yves Reynaud, Pascal Bouton, Lauriss Ngombi-Pemba, Francis Weber, Alain Trentesaux, Abderrazak El Albani
Publikováno v:
Sedimentology. 66:777-779
Autor:
Jérémie Aubineau, Donald E. Canfield, Olabode M. Bankole, Andrey Bekker, Stellina Gwenaelle Lekele Baghekema, M. Gabriela Mángano, Claude Laforest, Claire Rollion-Bard, Kurt O. Konhauser, Luis A. Buatois, Ernest Chi Fru, Alain Trentesaux, François Gauthier-Lafaye, Roberto Macchiarelli, Abderrazak El Albani, Arnaud Mazurier, Jean-Yves Reynaud, Armelle Riboulleau, Philippe Recourt, Alain Meunier, Timothy W. Lyons, Stefan Bengtson, Claude Fontaine
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, vol 116, iss 9
Proceedings of the National Academy of Sciences of the United States of America
Proceedings of the National Academy of Sciences of the United States of America, 2019, 116 (9), pp.3431-3436. ⟨10.1073/pnas.1815721116⟩
Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2019, 116 (9), pp.3431-3436. ⟨10.1073/pnas.1815721116⟩
El Albani, A, Gabriela Mangano, M, Buatois, L A, Bengtson, S, Riboulleau, A, Bekker, A, Konhauser, K, Lyons, T, Rollion-Bard, C, Bankole, O, Baghekema, S G L, Meunier, A, Trentesaux, A, Mazurier, A, Aubineau, J, Laforest, C, Fontaine, C, Recourt, P, Fru, E C, Macchiarelli, R, Reynaud, J Y, Gauthier-Lafaye, F & Canfield, D E 2019, ' Organism motility in an oxygenated shallow-marine environment 2.1 billion years ago ', Proceedings of the National Academy of Sciences of the United States of America, vol. 116, no. 9, pp. 3431-3436 . https://doi.org/10.1073/pnas.1815721116
Proceedings of the National Academy of Sciences of the United States of America
Proceedings of the National Academy of Sciences of the United States of America, 2019, 116 (9), pp.3431-3436. ⟨10.1073/pnas.1815721116⟩
Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2019, 116 (9), pp.3431-3436. ⟨10.1073/pnas.1815721116⟩
El Albani, A, Gabriela Mangano, M, Buatois, L A, Bengtson, S, Riboulleau, A, Bekker, A, Konhauser, K, Lyons, T, Rollion-Bard, C, Bankole, O, Baghekema, S G L, Meunier, A, Trentesaux, A, Mazurier, A, Aubineau, J, Laforest, C, Fontaine, C, Recourt, P, Fru, E C, Macchiarelli, R, Reynaud, J Y, Gauthier-Lafaye, F & Canfield, D E 2019, ' Organism motility in an oxygenated shallow-marine environment 2.1 billion years ago ', Proceedings of the National Academy of Sciences of the United States of America, vol. 116, no. 9, pp. 3431-3436 . https://doi.org/10.1073/pnas.1815721116
The 2.1 billion-year-old sedimentary strata contain exquisitely preserved fossils that provide an ecologic snapshot of the biota inhabiting an oxygenated shallow-marine environment. Most striking are the pyritized string-shaped structures, which sugg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39229dec465a7b33fd1a6ebf13b32376
https://escholarship.org/uc/item/0b2093bb
https://escholarship.org/uc/item/0b2093bb
Autor:
Idalina Moubiya Mouélé, Michel Cuney, Marie-Christine Boiron, Abderrazak El Albani, Patrick Dudoignon, François Gauthier-Lafaye
Publikováno v:
Comptes Rendus Géoscience
Comptes Rendus Géoscience, Elsevier, 2014, 346 (1-2), pp.13-19. ⟨10.1016/j.crte.2014.02.002⟩
Comptes Rendus Géoscience, Elsevier, 2014, 346 (1-2), pp.13-19. ⟨10.1016/j.crte.2014.02.002⟩
International audience; The Palaeoproterozoic Franceville basin, Gabon, is mainly known for its high-grade uranium deposits, which are the only ones known to act as natural nuclear fission reactors. Previous work in the Kiene region investigated the
Autor:
Andrey Bekker, Olivier Rouxel, Alain Meunier, A. El Albani, François Gauthier-Lafaye, Olabode M. Bankole
Publikováno v:
American Journal Of Science (0002-9599) (Amer Journal Science), 2016-11, Vol. 316, N. 9, P. 839-872
American journal of science
American journal of science, American Journal of Science, 2016, 316 (9), pp.839-872. ⟨10.2475/09.2016.02⟩
American journal of science
American journal of science, American Journal of Science, 2016, 316 (9), pp.839-872. ⟨10.2475/09.2016.02⟩
Red beds are extensively used as evidence for an oxygenated atmosphere in the Paleoproterozoic. Red beds in the unmetamorphosed, ca. 2.15 Ga FA Formation of the Franceville Basin, Gabon were geochemically, petrographically, and mineralogically charac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c3e8240d9c7ff93bd59802cc9c0d648
https://archimer.ifremer.fr/doc/00358/46966/
https://archimer.ifremer.fr/doc/00358/46966/
Autor:
François Gauthier-Lafaye, Abdeslam Seghour, Salah-Eddine Bentridi, A. Pape, Djamel-Eddine Medjadi, B. Gall
Publikováno v:
IEEE Transactions on Nuclear Science. 60:278-283
Explanation of the so-called Oklo phenomenon can only be found by associating neutron physics and geological observations. The framework of Reactor Zone #9 (RZ9) from the Oklo uranium deposit in Gabon is discussed. A realistic model of RZ9 is propose
Publikováno v:
Comptes Rendus Geoscience. 345:28-35
Highly depleted C isotope composition of organic matters from the Onega (Fennoscandian shield) and Francevillian (Gabon) basins are differently interpreted. Kump et al. (2011) suggested the occurrence of a massive and global oxidation event during th
Autor:
François Gauthier-Lafaye, Marc Ulrich, Abderrazak El Albani, Hubert Whitechurch, Francis Weber
Publikováno v:
Comptes Rendus Géoscience
Comptes Rendus Géoscience, Elsevier, 2016, 348, pp.572-586. ⟨10.1016/j.crte.2016.07.003⟩
Comptes Rendus Géoscience, Elsevier, 2016, 348, pp.572-586. ⟨10.1016/j.crte.2016.07.003⟩
International audience; The Eburnean orogeny in Africa results from the continental collision between the San Francisco and Congolian cratons. The different stages of this orogeny in Gabon are described from the initial rifting of the Archean contine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9539ca0ffbc242f98c98a189f7df9397
https://hal.archives-ouvertes.fr/hal-01402337
https://hal.archives-ouvertes.fr/hal-01402337
Autor:
Nathaelle Onanga Mavotchy, François Gauthier-Lafaye, Anne-Catherine Pierson-Wickmann, Alain Trentesaux, Armelle Riboulleau, Abderrazak El Albani, Philippe Boulvais, Lauriss Ngombi Pemba, Florent Pambo, Claude Fontaine
Publikováno v:
Comptes Rendus Géoscience
Comptes Rendus Géoscience, Elsevier, 2016, 348 (8), pp.609-618. ⟨10.1016/j.crte.2016.08.002⟩
Comptes Rendus Géoscience, 2016, 348 (8), pp.609-618. ⟨10.1016/j.crte.2016.08.002⟩
Comptes Rendus Géoscience, Elsevier, 2016, 348 (8), pp.609-618. ⟨10.1016/j.crte.2016.08.002⟩
Comptes Rendus Géoscience, 2016, 348 (8), pp.609-618. ⟨10.1016/j.crte.2016.08.002⟩
International audience; Dolomite concretions from Paleoproterozoic organic-rich sediments of the Franceville Basin (Francevillian) in southeastern Gabon are studied. These concretions, belonging to one of the rare well-preserved Proterozoic sediments
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ea1f1faf084790b12793d43ec8eafb1
https://hal-insu.archives-ouvertes.fr/insu-01390477/document
https://hal-insu.archives-ouvertes.fr/insu-01390477/document