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My research considers the influence of the biosphere on geological processes such as erosion and sedimentation, and also the tectonic evolution of the Earth. The evolution of life is strongly influenced by external factors, among them, plate tectonic (break down of continents) and climate change (green-world or ice-world), mantle convection (degassing of deep plume through hot spot), and meteoritic impacts. Is the life important enough to modify any of these geological events ? Can we speak of a co-evolution of life and geological processes, such as the marine sedimentation, the erosion of continent or the global climate ? Could we be witnessing (pre anthropogenic influence) and participating to a global biological war for survival, with large ecosystems (biome) or a single species in the case of homo sapiens controlling the environment, such as global climate, to their advantage ?
Answering these questions is not an easy job and ongoing debates are still on the front scene, nearly 4 decades after the provocative idea of GAIA (the full planet Earth reacts as a living organism) proposed by James Lovelock and more than 150 years after the birth of the Darwinism. This work includes field studies and takes advantage of classical (major and trace elements, H-, O-, C-,N- & S-isotopes, radiogenic Sr-, Nd, Pb-isotopes) and new geochemical tracers affected by the biological cycle, such as Mg- and Ca-isotopes.
Answering these questions is not an easy job and ongoing debates are still on the front scene, nearly 4 decades after the provocative idea of GAIA (the full planet Earth reacts as a living organism) proposed by James Lovelock and more than 150 years after the birth of the Darwinism. This work includes field studies and takes advantage of classical (major and trace elements, H-, O-, C-,N- & S-isotopes, radiogenic Sr-, Nd, Pb-isotopes) and new geochemical tracers affected by the biological cycle, such as Mg- and Ca-isotopes.
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PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY (2024)
crossref(2024)
Christian France-Lanord,Albert Galy,Valier Galy,Pascale Huyghe, Jérôme Lavé, Sébastien Lenard,Mara Limonta,Thomas Rigaudier,Volkhard Spiess, Aswin Tachambalath
crossref(2024)
Palaeogeography, Palaeoclimatology, Palaeoecology (2024): 112038
Nature Geosciencepp.1-1, (2024)
EARTH AND PLANETARY SCIENCE LETTERS (2024): 118493
Earth and Planetary Scienceno. 1 (2024)
Journal Of Geophysical Research: Biogeosciencesno. 4 (2023)
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