Results 11 to 20 of about 5,358 (287)

Quantifying weathering intensity using chemical proxies: a weathering index AFB

Australian Journal of Earth Sciences, 2022
Nikita Sergeev
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Distinctive volcanic ash-rich lacustrine shale deposition related to chemical weathering intensity during the Late Triassic: Evidence from lithium contents and isotopes. [PDF]

Sci Adv
Liu Q, Li P, Jiang L, Jin Z, Liang X, Zhu D, Pang Q, Zhang R, Liu J.   +8 more
europepmc   +3 more sources

The significance of river water physico-chemical monitoring: is climate change increasing the intensity and rate of rock weathering? [PDF]

Discover Water
Abstract The alteration of rainfall patterns, the possible worldwide increase of mean temperatures, and the recurrence of extreme climatic events roughly describe climate change, as widely perceived. Accordingly, geochemical investigations are researching if climate change may accelerate the weathering of crustal rocks, through its net effect on the ...
Pedro J. Depetris
openalex   +3 more sources

Tectonic and climatic forcing of chemical weathering intensity in the northeastern Tibetan Plateau since the middle Miocene

CATENA, 2021
Abstract Chemical weathering of continental silicates is a crucial geological process in regulating Earth’s long-term climate and participating in global carbon cycle. The increasing aridity and active tectonic settings in the northeastern Tibetan Plateau since the middle Miocene, combining the global cooling background, make this region ideal for ...
Hanjing Fu, Xing Jian, Hanghai Liang, Wei Zhang, Xiaotian Shen, Ling Wang   +5 more
openalex   +2 more sources

The constancy of chemical weathering intensity on hillslopes in the arid to semiarid Qilian Mountains, NE Tibetan Plateau [PDF]

Goldschmidt2022 abstracts, 2022
Jian Zhang, Geng Haopeng
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Geochemistry of core sediments from the southeast coast of Bangladesh: Implications for provenance and chemical weathering intensity

Geochemical analyses of major oxides, trace, and rare-earth elements (REE) were examined on the ~70 m core sediments collected from the southeast coast of Bangladesh to determine sediment provenance, maturity, and chemical weathering conditions. The sediment samples contained high SiO2 (62-91 wt.%) and low Al2O3 (~5-17 wt.%) contents and showed a ...
H. M. Zakir Hossain, Anas Al Hossain, Md. Aminul Islam, Zhifei Liu, M. Y. Yu, Ce Zheng   +5 more
openalex   +2 more sources

Chemical weathering intensity controls the accumulation of nickel in rice (Oryza sativa L.) cultivated in basalt-derived paddy fields

Geoderma, 2023
Haoxian Wang, Yang Chen, Junfeng Ji, Xuming Li, David William Hedding, Jun Chen   +5 more
openalex   +2 more sources

Intensive Chemical Weathering in the Arctic During the Miocene Climatic Optimum [PDF]

Palaeogeography, Palaeoclimatology, Palaeoecology, 2023
The Arctic today has shallow, chemically immature, and frost-dominated weathering regimes. At Sokli, Finland (68°N), a 70 m deep palaeo-weathering profile is developed in a Devonian carbonatite pipe that represents fundamentally different past weathering environments.
Hall, Adrian M., Barfod, Dan N., Gilg, H. Albert, Stuart, Finlay M., Sarala, Pertti, Al-Ani, Thair   +5 more
openaire   +1 more source

Low chemical weathering intensity in the Vøring Basin during the Paleocene-Eocene Thermal Maximum

The Paleocene Eocene thermal Maximum (PETM) was a rapid global warming event, which occurred ~ 56 million years ago and lasted for ~200 ka. It is characterized by a massive rapid input of 13C-depleted carbon into the atmosphere and ocean, causing a 2-7‰ negative carbon isotope excursion (CIE).
Anjana Gireesh Sandhya, Katharina Pahnke, Jack Longman, Joost Frieling, Morgan T. Jones   +4 more
openalex   +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
doaj   +1 more source