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Weathering fluxes and carbon sink in continental silicate rock

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  • ① State key Laboratory of Isotope Geochemistry, CAS Center for Excellence in Deep Earth Science, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; ② University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2024-11-11

  Online published: 2025-01-26

Abstract

Weathering of continental silicate rocks and subsequent carbonate burial are crucial geological processes for removing carbon dioxide from surface carbon pools, and are widely recognized that is important for regulating global atmospheric carbon dioxide levels and the evolution of Earth's climate. Accurate assessment of the weathering flfluxes of continental silicate rocks and their CO2 consumption flfluxes has long been a signifificant frontier of geoscientifific research. In this view, this paper systematically compiles the calculational models and their key parameters for quantifying weathering flfluxes of silicate rocks, reviews the advantages, disadvantages, and scope of each model, and anticipates how weathering flfluxes of silicate rocks can be more accurately quantifified in the future. In addition, based on the existing weathering flfluxes calculation model, the global CO2 flfluxes consumed by chemical weathering of silicate rocks are comprehensively assessed, and a qualitative and/or quantitative basis for discriminating climate change due to weathering is proposed.

Cite this article

LUO Kai, MA Jinlong, WEI Gangjian, ZHU Guanhong, WANG Jiahao, WANG Zhibing . Weathering fluxes and carbon sink in continental silicate rock[J]. Chinese Journal of Nature, 2025 , 47(1) : 52 -63 . DOI: 10.3969/j.issn.0253-9608.2025.01.006

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