Increased chemical weathering during the deglacial to mid-Holocene summer monsoon intensification.

ABSTRACT: Chemical weathering and the ensuing atmospheric carbon dioxide consumption has long been considered to work on geological time periods until recently when some modelling and natural records have shown that the weathering-related CO₂ consumption can change at century to glacial-interglacial time scale. Last glacial to interglacial transition period is a best test case to understand the interplay between Pco₂-temperature-chemical weathering when a pulse of rapid chemical weathering was initiated. Here we show, from a high resolution 54 ka record from the Andaman Sea in the northern Indian Ocean, that the chemical weathering responds to deglacial to mid-Holocene summer monsoon intensification in the Myanmar watersheds. The multi-proxy data (Al/K, CIA, Rb/Sr, ⁸⁷

SUBMITTER: Miriyala P 

PROVIDER: S-EPMC5355878 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature