Results 1 to 10 of about 7,039,060 (250)

Chemical Weathering Intensity as a Reliable Indicator for Southwest Summer Monsoon Reconstruction: Evidence From Clay Minerals of Qionghai Lake Sediments Since the Last Glacial Maximum

Geochemistry, Geophysics, Geosystems, 2023
Studying the evolution history of the southwest summer monsoon (SSM) throughout geological time, particularly during its strongest period in the Holocene, can improve our understanding of its variation and driving mechanisms, and even help predict future
Xiaoli Yu, Gen Wang, Ting Zhang, Xueyun Ma, Xiaomei Zhang, Lun Li, Zelong Li, Zengguang Guo, Zhifu Wei, Yongli Wang, Shixin Zhou   +10 more
doaj   +3 more sources

K isotopes trace temporal silicate weathering intensity [PDF]

Nature Communications
Silicate weathering alters the biogeochemical compositions of the lithosphere, hydrosphere, and atmosphere, and thereby regulates both nutrient cycling and habitable temperatures on Earth, but tracing silicate weathering effectively remains a challenge ...
Long-Fei Gou, He Sun, Hai-Ou Gu, Philip A. E. Pogge von Strandmann, Wenshuai Li, David J. Wilson, Jun Xiao, Zhi-Qi Zhao, Albert Galy, Zhangdong Jin   +9 more
doaj   +3 more sources

Chemical weathering intensity and terrigenous flux in South China during the last 90,000 years – evidence from magnetic signals in marine sediments [PDF]

Frontiers in Earth Science, 2016
The level of chemical weathering is strongly affected by climate. We presented magnetic properties associated with element ratios from the northern part of the South China Sea to denote links between chemical weathering intensity and monsoon changes in ...
Xiaoqiang eYang, Xuechao ePeng, Xiaoke eQiang, Niu eLi, Qixian eZhou, Wang eYuejun   +5 more
doaj   +4 more sources

Topographic and Climatic Control on Chemical Weathering of Mountainous Riverine Sediments of Hainan Island, South China Sea

Frontiers in Earth Science, 2022
Hainan Island, the largest island in the northwestern South China Sea (SCS), is characterized by many tropical mountainous rivers that flow into the SCS.
Fangjian Xu, Fangjian Xu, Bangqi Hu, Bangqi Hu, Jingtao Zhao, Xiting Liu, Ruyong Cui, Xue Ding, Xue Ding, Guifeng Wang, Jianping Huang   +10 more
doaj   +2 more sources

Chemical weathering detection in the periglacial landscapes of Maritime Antarctica: New approach using geophysical sensors, topographic variables and machine learning algorithms

Geoderma, 2023
The chemical weathering intensity in Antarctica is underestimated. As the chemical weathering intensity increases, hydrological, geochemical and geophysical changes occur in the different environmental spheres and at their interfaces through reactions ...
Danilo César de Mello, Gustavo Vieira Veloso, Cassio Marques Moquedace, Isabelle de Angeli Oliveira, Márcio Rocha Francelino, Fabio Soares de Oliveira, José João Lelis Leal de Souza, Lucas Carvalho Gomes, Carlos Ernesto Gonçalves Reynaud Schaefer, Elpídio Inácio Fernandes-Filho, Edgar Batista de Medeiros Júnior, José Alexandre Melo Demattê   +11 more
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Chemical weathering in hardened volcanic horizons (tepetates) of the State of Mexico

Revista Mexicana de Ciencias Geológicas, 2022
Weathering is one of the most important phenomena that affect the balance dynamics of the Earth's crust. The chemical composition of soil samples and hardened horizons from seven profiles (P1 to P7) of the State of Mexico was compared to detect the ...
Otilio A. Acevedo-Sandoval, Francisco Prieto-García, Judith Prieto-Méndez, Yolanda Marmolejo-Santillán, Claudia Romo-Gómez   +4 more
doaj   +2 more sources

The Influences of Climatic and Lithological Factors on Weathering of Sediments in Humid Badland Areas [PDF]

Frontiers in Earth Science, 2022
Climate variables including temperature, rainfall intensity, rainfall acidity, and lithological properties are among the most important factors affecting rock weathering.
Chunxia Xie, Nevena Antić, Estela Nadal-Romero, Luobin Yan, Tomislav Tosti, Svetlana Djogo Mračević, Xinjun Tu, Milica Kašanin-Grubin   +7 more
doaj   +2 more sources

Rhenium isotopes reveal enhanced rock organic carbon oxidation over the Toarcian Oceanic Anoxic Event [PDF]

Nature Communications
Weathering plays a central role in the geological carbon cycle. Silicate mineral weathering is invoked as a stabilizing feedback on CO2 emissions, for example from volcanism during the emplacement of Large Igneous Provinces.
Madeleine Stow, Alexander J. Dickson, Julie Prytulak, Mathieu Dellinger, Victoria Alcock, Stephen P. Hesselbo, Geoff M. Nowell, Robert G. Hilton   +7 more
doaj   +2 more sources

Soil Weathering and Nutrient Dynamics in Response to Land-Use Change Following Forest Conversion to Tea Plantations [PDF]

Plants
Forests’ conversion to tea plantations is a land use transition type with high economic value in China. How this conversion affects soil weathering and nutrient characteristics remains unclear.
Nan Li, Binbin Shen, Abdelkader Bassiony, Yang Liu, Jianwu Li, Li Ruan   +5 more
doaj   +2 more sources

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