Abstract
Global warming and the associated hydrological cycle variations are known to disrupt the weathering regime over geological timescales. Enhanced weathering and erosion, which constitute denudation, are important feedback mechanisms for regulating Earth’s temperature over multi-million-year timescales. Weathering can draw down CO2 from the atmosphere, while enhanced physical transport can accelerate organic carbon sedimentation and sequestration. This study aims to uncover changes to the denudation regime accompanying a massive climatic disturbance in deep time, the Paleocene-Eocene Thermal Maximum (PETM). The global warming of 5-8 °C due to the PETM has been documented to have increased the magnitude and intensity of precipitation events in the Spanish Pyrenees. But how did weathering respond to such a climatic and hydrological disturbance?We investigated the lithium (Li), hafnium (Hf), and neodymium (Nd) isotopic composition of the
Published Version
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