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Catena, 2015
Abstract Continental weathering plays a key role in earth surface processes by linking Earth's spheres and producing material for cycling. Previous studies have proposed numerous weathering indices for the evaluation of chemical weathering intensity.
Shouye Yang, Ni Su, Chengfan Yang
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Abstract Continental weathering plays a key role in earth surface processes by linking Earth's spheres and producing material for cycling. Previous studies have proposed numerous weathering indices for the evaluation of chemical weathering intensity.
Shouye Yang, Ni Su, Chengfan Yang
exaly +2 more sources
American Journal of Science, 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. However, because it induces some uncertainties, we propose a
Meunier, A. +4 more
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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. However, because it induces some uncertainties, we propose a
Meunier, A. +4 more
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Стратиграфия, 2023
The values of Ni/Co, La/Sc, and Th/Cr (indicators of the composition of rock complexes eroded in paleowatersheds) and the values of CIA, Rb/Al, K/Al and K/Rb (indicators of the intensity of chemical weathering on land), typical for fine-grained clastic rocks of the Riphean of the Southern Urals were compared to the data given in the publication “Long ...
A. V. Maslov, V. N. Podkovyrov
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The values of Ni/Co, La/Sc, and Th/Cr (indicators of the composition of rock complexes eroded in paleowatersheds) and the values of CIA, Rb/Al, K/Al and K/Rb (indicators of the intensity of chemical weathering on land), typical for fine-grained clastic rocks of the Riphean of the Southern Urals were compared to the data given in the publication “Long ...
A. V. Maslov, V. N. Podkovyrov
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Water (Switzerland)The hydrochemical characteristics of watersheds are influenced by many factors, with chemical weathering and human activities exerting the most substantial influence. Performing a quantitative evaluation of the factors contributing to the chemical weathering of rocks is of significant scientific importance. This research zeroes in on the Qingtang River
Fang Guo, Fan Liu
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Intense chemical weathering in southwest Japan during the Pliocene warm period
Journal of Asian Earth Sciences, 2019Abstract Bulk chemical composition and mineral composition of the Pliocene sediments in southwest Japan reveal the effects of source rock compositions and grain sizes, as well as the relationship between sedimentary environments and the degree of chemical weathering in the Pliocene warm period.
Nozomi Hatano +3 more
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Mineralogical changes during intense chemical weathering of sedimentary rocks in Bangladesh
Journal of Asian Earth Sciences, 2002Abstract Bangladesh is situated in a subtropical to tropical climatic zone. A recently weathered crust has developed on sedimentary bedrock (sandstone, siltstone, shale and claystones) of Tertiary–Quaternary age. Weathered samples were collected from 16 sections totaling 68 samples and were analyzed mineralogically.
Md.R. Islam +3 more
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Journal of Asian Earth Sciences, 2019
Abstract Cenozoic basin sediments around the Tibetan Plateau are valuable archives that can be used to reveal long-term interactions among tectonics, climate and weathering. However, the reconstruction of silicate weathering histories in this tectonically active region is consistently hindered by the presence of frequently embedded conglomerate and ...
Yibo Yang +2 more
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Abstract Cenozoic basin sediments around the Tibetan Plateau are valuable archives that can be used to reveal long-term interactions among tectonics, climate and weathering. However, the reconstruction of silicate weathering histories in this tectonically active region is consistently hindered by the presence of frequently embedded conglomerate and ...
Yibo Yang +2 more
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Chemical Geology, 2016
Abstract Chemical weathering plays a key role in the long-term climate change and global biogeochemical cycle. In this study, a 5.1 m-long basalt-developed weathering profile from Hunan Province, China, was selected for the analyses of major elements, grain size, pH, total organic carbon, thermogravimetric (TG) and differential thermogravimetric ...
Shouye Yang, Ni Su, Chengfan Yang
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Abstract Chemical weathering plays a key role in the long-term climate change and global biogeochemical cycle. In this study, a 5.1 m-long basalt-developed weathering profile from Hunan Province, China, was selected for the analyses of major elements, grain size, pH, total organic carbon, thermogravimetric (TG) and differential thermogravimetric ...
Shouye Yang, Ni Su, Chengfan Yang
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Science in China Series D: Earth Sciences, 1998
Major and trace element analyses of the Luochuan loess-paleosol sequence in China were performed in order to understand the cheniical weathering processes occurring on the I.oess Plateau during the last 600 ka. Results reveal that most elements in the loess remain immobile durlng chemical weathering.
Chen Jun, Ji Junfeng, Qiu Gang, Lu Huayu
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Major and trace element analyses of the Luochuan loess-paleosol sequence in China were performed in order to understand the cheniical weathering processes occurring on the I.oess Plateau during the last 600 ka. Results reveal that most elements in the loess remain immobile durlng chemical weathering.
Chen Jun, Ji Junfeng, Qiu Gang, Lu Huayu
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Geoderma, 2021
Abstract Widely distributed Quaternary red soils (QRSs) in southern China represent the product of intense chemical weathering under a warm and humid climate. Soil containing plinthite is an important part of China’s QRSs, yet the soil environment and mechanism of formation of QRS with plinthite have been insufficiently studied. By comparing iron and
Lulu Zhao +6 more
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Abstract Widely distributed Quaternary red soils (QRSs) in southern China represent the product of intense chemical weathering under a warm and humid climate. Soil containing plinthite is an important part of China’s QRSs, yet the soil environment and mechanism of formation of QRS with plinthite have been insufficiently studied. By comparing iron and
Lulu Zhao +6 more
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