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chemical weathering |
Also found in: Hutchinson | 0.03 sec. |
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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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| In particular, the researchers have explored how early microbes, such as the ancestors of cryptogamic crusts, might have contributed to the chemical weathering of rocks. They concentrated their examination on how life affects the chemical weathering of rocks -- a process that pulls carbon dioxide from the air and thereby keeps Earth's surface cool. Prolonged chemical weathering has produced a laterite/saprolite profile as deep as 100 metres. |
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