Science / Weather / Weathering: The decay and breakup of rocks on the earth's surface by natural chemical and mechanical processes. The mechanical action includes large changes of temperature, extreme temperatures, frost, or the impact of wind borne sand or water. Chemical action includes the chemical reactions between atmospheric constituents in a moist environments or in rain water. Biological agents are mainly fungi which attack organic material.
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Science / Geology / Mechanical Weathering: A general term applied to a variety of weathering processes that result in the particle size reduction of rock materials with no change in composition. Frost action, salt crystal growth and pressure r MORE
Science / Geology / Physical Weathering: A general term applied to a variety of weathering processes that result in the particle size reduction of rock materials with no change in composition. Frost action, salt crystal growth and pressure r MORE
Science / Geology / Zone Of Weathering: A subsurface area, above the water table, where mineral and organic materials are subject to weathering. MORE