Cation isotopes trace chemical weathering
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Updated Time:2024-05-08 13:39:53
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Poster Presentation
Abstract
Chemical weathering alters the chemical compositions of the lithosphere, hydrosphere, and atmosphere, in particular, sustaining a habitable geo-history CO2 concentration. Cation release is the main feature of chemical weathering, together with measurable cation isotopes recently available provided high-dimensional information of weathering rate, flux, and intensity. However, due to the unique geochemical behavior of each cation, enables every cation a certain tractability for chemical weathering. Therefore, we let Li isotopes indicate temperature dependency, Mg isotopes trace secondary aluminosilicate and carbonate precipitation, K isotopes trace silicate weathering intensity, Sr isotope trace sources of weathering, and Ba isotopes trace riverine adsorption processes. So as to comprehensively understanding chemical weathering.
Keywords
Chemical weathering,Cation isotopes,Supergene geochemistry,isotopic tracing
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