Results 11 to 20 of about 5,346,196 (304)

Chemical Weathering [PDF]

, 2017
Living reference work entry First Online: 22 July 2017 Definition: Weathering of rocks caused by the chemical action of water containing atmospheric oxygen, carbon dioxide, and some organic acids in solution on the rock-forming minerals leading to an adjustment of the mineralogical composition with the formation of new minerals, like hydrous ...
Jérôme Viers, Priscia Oliva
core   +6 more sources

Continental chemical weathering during the Early Cretaceous Oceanic Anoxic Event (OAE1b): a case study from the Fuxin fluvio-lacustrine basin, Liaoning Province, NE China

Journal of Palaeogeography, 2020
This study focuses on Early Cretaceous mudstones from the Shahai and Fuxin formations in the Fuxin continental basin. We analyse chemical weathering, land surface temperatures and palaeoclimates based on chemical weathering indices, and emphasize the ...
Xiao-Tao Xu, Long-Yi Shao, Bo Lan, Shuai Wang, Jason Hilton, Jian-Yi Qin, Hai-Hai Hou, Jie Zhao   +7 more
doaj   +1 more source

Review Article Silicate Bacteria as a Biofertilizer [PDF]

Journal of Agricultural Chemistry and Biotechnology, 2022
The present article reveals that silicate solubilizing microbes are essential part of weathering silicate minerals. Alumino-silicate group appears the most minerals to weathering by several bacteria.
Aida Afify
doaj   +1 more source

The circular nutrient economy of terrestrial ecosystems and the consequences for rock weathering

Frontiers in Environmental Science, 2023
Earth’s biosphere is thought to exert a substantial influence on regolith evolution and chemical weathering rates. However, ecosystems are also highly efficient at retaining and recycling nutrients.
Kate Maher, Friedhelm von Blanckenburg, Friedhelm von Blanckenburg   +2 more
doaj   +1 more source

Enhanced chemical weathering of rocks during the last glacial maximum: a sink for atmospheric CO2? [PDF]

, 1999
It has been proposed that increased rates of chemical weathering and the related drawdown of atmospheric CO2 on the continents may have at least partly contributed to the low CO2 concentrations during the last glacial maximum LGM..
Probst, Jean-Luc, Amiotte Suchet, Philippe, Ludwig, Wolfgang, Philippe Amiotte-Suchet, Jean-Luc Probst, Wolfgang Ludwig   +5 more
core   +1 more source

Hydrochemistry applied to assess the chemical weathering and soil removal rates in the Sorocaba River basin, São Paulo State

Brazilian Journal of Geology, 2020
: Chemical weathering and soil removal rates are responsible for the Earth’s landscape, composition of surface and groundwater, producing the soils and buffering the composition of the atmosphere.
Alexandre Martins Fernandes, Fabiano Tomazini da Conceição, Jeferson Mortatti   +2 more
doaj   +1 more source

Geochemistry of the dissolved loads during high-flow season of rivers in the southeastern coastal region of China: anthropogenic impact on chemical weathering and carbon sequestration [PDF]

Biogeosciences, 2018
The southeastern coastal region is one of the most developed and populated areas in China. Meanwhile, it has been severely impacted by acid rain over many years.
W. Liu, W. Liu, W. Liu, Z. Xu, Z. Xu, Z. Xu, H. Sun, H. Sun, T. Zhao, T. Zhao, C. Shi, T. Liu   +11 more
doaj   +1 more source

Mobile evaporite enhances the cycle of physical–chemical erosion in badlands [PDF]

Earth Surface Dynamics, 2023
Chemical weathering driven by physical erosion is a natural process that strongly affects chemical and solid matter budgets at the Earth's surface. However, the influence of extreme climatic erosion on chemical weathering dynamics is poorly understood ...
C.-J. Yang, C.-J. Yang, P.-H. Chen, E. D. Erlanger, J. M. Turowski, S. Xu, T.-Y. Teng, J.-C. Lin, J.-C. Huang   +8 more
doaj   +1 more source

Physical and chemical weathering rates and CO2 consumption in a tropical lateritic environment: the upper Niger basin [PDF]

, 1998
The chemical composition of Niger river water measured bimonthly at Bamako Mali. during the period 1990–1992 provides an estimate of present weathering rates in the upper Niger basin.
Probst, Jean-Luc, Jean-Loup Boeglin, Jean-Luc Probst, Boeglin, Jean-Loup   +3 more
core   +1 more source

The Effect of Size Distribution on the Geochemistry and Mineralogy of Tropical River Sediments and Its Implications regarding Chemical Weathering and Fractionation of Alkali Elements

Lithosphere, 2022
The mineralogical and geochemical compositions of the sediments deposited by rivers have been used extensively to evaluate past chemical weathering and the physical erosion history of drainage basins at different time scales.
Kaikai Wu, Shengfa Liu, Xuefa Shi, Christophe Colin, Franck Bassinot, Zhanghua Lou, Hui Zhang, Aimei Zhu, Xisheng Fang, Che Abd. Rahim Mohamed   +9 more
doaj   +1 more source