WebThe chemical index of alteration (CIA) has been widely used as a proxy for chemical weathering in sediment source area. In this paper, the CIA values of suspended particulate matters from 44 WebFeb 1, 2013 · The chemical index of alteration (CIA) is a tool to calculate the weathering intensity ( Nesbitt and Young, 1982 ). It has been largely used to reconstitute the past climates on Earth at different epochs and to determine the sediment source rocks from shale and graywacke stratigraphical series.
Chemical weathering indices applied to weathering
WebJan 8, 2024 · Chemical index of alteration (CIA), chemical index of weathering (CIW), chemical index of weathering excluded CaO (CIX), and weathering index of Parker (WIP) of mudstones from the upper Carboniferous-Permian in the DM1 borehole of Anhe coalfield in North China. The estimated land surface temperatures (LSTs) are also shown in the … WebMay 25, 2024 · The corrected chemical index of alteration (CIA) and the plagioclase index of alteration (PIA) indicate an intermediate to unweathered degree in the gabbroic diorite and an extreme to unweathered degree in the basaltic andesite. memory walk homburg 2022
Is chemical index of alteration (CIA) a reliable proxy for
WebJul 16, 2024 · The intensity of chemical alteration/weathering such as CIA (Chemical Index of Alteration) (Nesbitt and Young, 1984); CIW (Chemical Index of Weathering) (Nyakairu and Koeberl, 2001); and WIP … WebJul 1, 2010 · 1.. IntroductionThe Chemical Index of Alteration (CIA) was proposed by Nesbitt and Young (1982) as a measure of the role played by chemical weathering in … WebChemical Index of Alteration (CIA), Plagioclase Index of Alteration (PIA) and Chemical Index of Weathering (CIW), the beach sands from all sites in the source area have undergone low to moderate degree of chemical weathering. A-CN-K and A-CNK-FM plots, which suggest a granitic source composition, also confirm that the memory visualized