Cécile Quantin

A memory of Paleozoic to Quaternary Greenhouse climates recorded in Southern African regolith

Abstract In this article, we explore the potential of iron-rich duricrust regoliths from old erosional anorogenic surfaces to record clues of the long-term continental paleoclimatic evolution. We coupled geochemical, mineralogical and geochronological analyses on iron oxides and...

Iron Isotopes Reveal Fe Export Driven by Change of Tropical Weathering Regime

Abstract Unraveling paleoenvironmental signals recorded in laterites is crucial for quantifying weathering‐driven elemental fluxes at the Earth's surface. New stable iron isotope data (δ 56 Fe), combined with (U‐Th)/He ages in Fe‐oxides from a ferruginous duricrust from French Gu...