Definition of chemical weathering in English:
The erosion or disintegration of rocks, building materials, etc., caused by chemical reactions (chiefly with water and substances dissolved in it) rather than by mechanical processes.
- Great physical relief results in intense physical erosion and rapid exposure of fresh reactive rock for chemical weathering, but it provides less contact time between water and rocks.
- Over thousands to millions of years, the physical breakdown and chemical weathering of volcanic rocks have formed some of the most fertile soils on Earth.
- The problem is most acute in tropical, equatorial and desert regions where the surface environment is particularly fragile because of its long history of intense chemical weathering over geological timescales.
Definition of chemical weathering in:
- US English dictionary
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