Fanny Thibon

Fanny Thibon
Laboratoire de Géolgie de Lyon Terre Planètes Environnement

PhD

About

15
Publications
1,097
Reads
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66
Citations
Citations since 2016
15 Research Items
66 Citations
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530

Publications

Publications (15)
Article
The vertebrate fossil record documents a plethora of transitions between aquatic and terrestrial environments but their causes are still debated. Quantifying the salinity of living environments is therefore crucial for precising the sequence of ecological transitions. Here, we measured lithium stable isotope composition of mineralized tissues (δ7Li...
Preprint
Lithium (Li) has a wide range of uses in science, medicine and industry but its isotopy is underexplored, except in nuclear science and in geoscience. 6Li and 7Li isotopic ratio exhibits the second largest variation on Earth surface and constitutes a widely used tool for reconstructing past oceans and climates. As large variations have been measure...
Article
Full-text available
This study reports Li concentrations and Li isotope compositions of soft tissues and bones from six international reference materials of biological origin, i.e., lobster hepatopancreas (TORT-2 and TORT-3), dogfish muscle (DORM-2 and DORM-4), mussel tissue (ERM-CE278k), and bone ash (SRM-1400). An in-house standard of plankton material (PLK-VLFR) ha...
Article
Trace metals such as Cu, Hg, and Zn have been widely investigated in marine ecotoxicological studies considering their bioaccumulation, transfer along trophic webs, and the risks they pose to ecosystems and human health. Comparatively, Li has received little attention, although this element is increasingly used in the high-tech, ceramics/glass, and...
Article
Elemental fluxes to the ocean are expected to increase with the surface area of continental exposure to weathering and atmospheric PCO2. The record of phosphorus in sediments, which has no notable source within the ocean, and the radiogenic strontium isotopes in Archean carbonates indicate that, prior to the Great Oxidation Event (GOE), subaerial e...
Article
Trace metals in Iron Formations (IF) have been widely used as proxies for oceanic redox processes and oxygen evolution leading to the Great Oxidation Event (GOE). Copper has hitherto received comparatively little attention, with a single study reporting variation in δ⁶⁵Cu between pre- and post-GOE black shales. This is attributed to postulated isot...
Thesis
Les conditions oxydantes de la surface terrestre actuelle sont dues à la teneur élevée en dioxygène de l’atmosphère. Au début de l’histoire de la Terre il y a 4.54 milliards d'années (Ga), l’oxygène n’était pas stable dans l’atmosphère. Il a fallu deux épisodes d’augmentation brutale de ce gaz atmosphérique pour qu’il atteigne son niveau actuel : l...
Article
We report Fe isotope compositions in banded iron formations (BIF) from three cores from the pre-GOE Transvaal Supergroup, South Africa, and one core from the pre-GOE Joffre Member of the Hamersley Group, Australia. The low abundances of detrital elements such as Al, Ti, Sc, and V suggest that these BIF were deposited in distal positions with respec...

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