chemical weathering

chemical weathering

[′kem·i·kəl ′weth·ə·riŋ]
(geochemistry)
A weathering process whereby rocks and minerals are transformed into new, fairly stable chemical combinations by such chemical reactions as hydrolysis, oxidation, ion exchange, and solution. Also known as decay; decomposition.
References in periodicals archive ?
Plants play a major role in the chemical weathering of continental rocks.
As on Earth, chemical weathering and hydrothermal reactions can change minerals in rock from dry to water-bearing.
Over a period of time, this process - known as chemical weathering - cooled the planet back down, and ushered in another ice age.
The bicarbonates produced by chemical weathering also play an important role in the big picture.
The effects of chemical weathering of sedimentary rocks were described by Chigira and Oyama [5].
This will pave the way for the development of a new proxy of chemical weathering intensity applicable on a global scale and will serve to establish the European research area as a world leader in weathering processes.
The new data show clear chemical weathering trends, and clay accumulation at the expense of the mineral olivine, as expected in soils on Earth.
Clay minerals, in general, are the resultant end-products of weathering and are therefore more resistant to chemical weathering than their parent materials (Jackson et al.
Scientists from Oxford University studied rocks from locations including Beachy Head, near Eastbourne, and South Ferriby, North Lincolnshire, to investigate how chemical weathering of rocks "rebalanced" the climate after vast amounts of carbon dioxide (C[O.
The laterite duricrust is a product of prolonged chemical weathering and forms by relative accumulation of Fe and A1 as more soluble components are lost from the weathering profile.
The Circle of Ancient Iranian Studies (CAIS) in Britain has said the dampness has caused chemical weathering that has brought corrosion and decay, caused the stone masonry walls to crack and gradually crumble.

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