Distinctive volcanic ash–rich lacustrine shale deposition related to chemical weathering intensity during the Late Triassic: Evidence from lithium contents and isotopes

Authors: Quanyou Liu, Peng Li, Lei Jiang, Zhijun Jin, Xinping Liang, Dongya Zhu, Qian Pang, Rui Zhang, Jiayi Liu

Published: 2024-03-15

DOI: 10.1126/sciadv.adi6594

Source: Full article

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Abstract

The Late Triassic Carnian Pluvial Episode (CPE) witnessed enormous climate change closely associated with volcanic activity. However, the coupling relationship between volcanic activity and climate change, which may be linked to chemical weathering, has not yet been fully uncovered. We used lithium contents and isotopes of volcanic ash (VA)–bearing lacustrine shale to constrain their deposition pathways and response to climate changes, i.e., weathering intensity, during the Late Triassic era. Elevated δ