geo test 2 outline

geo test 2 outline - Physical Weathering breaks up rocks...

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Physical Weathering breaks up rocks, frost wedging 1. Liquid water enters cracks, 2. Water expands as freezing pushes rocks apart, 3. Ice thaws and rocks fall away (1) physical weathering affects shape of rocks, chemical weathering dissolves rocks basalts weather quickly, granite weathers slowly carbonic acid is produced by the decay of organic matter into soils soil organized into 3 horizons (2) sand-rock frag and resistant minerals like quartz, clay-microscopic sheet silicate materials, dissolved salts-mostly sodium bicarbonate material is transported both in solution and in suspension by water flowing to the ocean erosion & transport of sedi controlled by stream velocity, sediment transport occurs during floods particles trapped in solution (dissolved load), in suspension (suspended load), or as bed load (depends on size) each river gathers up materials from its drainage basin, drainage basins are separated by drainage divides. When river enters ocean and lake drops suspended load and forms delta
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This note was uploaded on 08/29/2011 for the course GEOS 1024 at Virginia Tech.

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geo test 2 outline - Physical Weathering breaks up rocks...

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