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<META
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<META
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 content="2009-08-13T11:04:11-04:00" >
<META
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 content="2009-08-13T11:04:15-04:00" >
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><FONT size="+1" color="#000000"></B>Erosion Processes &amp; Landforms<FONT size="+1"> </P
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><FONT size="+1">Rock Weathering - Solar Energy - (Exogenic)<FONT size="+1"> </P
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><FONT size="+1">Chemical Rx &amp; hydrothermal<FONT size="+1"> </P
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><FONT size="+1">Ground h2o 10-20 km below surface<FONT size="+1"> </P
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><FONT size="+1">(Weathering &amp; solution)<FONT size="+1"> </P
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><FONT size="+1">Disintegration vs. Decomposition<FONT size="+1"> </P
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><FONT size="+1">Exfoliation Domes - Sheet Erosion<FONT size="+1"> </P
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><FONT size="+1">Rock mass strength - (Diamond - H 10 vs. Talc - HI)<FONT size="+1"> </P
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><FONT size="+1">Rosen's Law - fragments inverse to size<FONT size="+1"> </P
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><FONT size="+1">Rock fracture - Pressure release &amp; expansion<FONT size="+1"> </P
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><FONT size="+1">Thermal contractions<FONT size="+1"> </P
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><FONT size="+1">Crystal growth<FONT size="+1"> </P
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><FONT size="+1">Sedimentary rock - coal<FONT size="+1"> </P
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><FONT size="+1">Igneous - granite<FONT size="+1"> </P
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><FONT size="+1">(Sheeting) (Mineral differences)<FONT size="+1"> </P
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><FONT size="+1">Quarry Rock Bursts<FONT size="+1"> </P
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><FONT size="+1">Continuous Joints vs. Short<FONT size="+1"> </P
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><FONT size="+1">Thermal expansion<FONT size="+1"> </P
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><FONT size="+1">Volcanic Steam (surface/depth/color/fire)<FONT size="+1"> </P
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><FONT size="+1">Salt &amp; Crystal Growth -      Iron oxide / salt precipitation<FONT size="+1"> </P
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><FONT size="+1">Rock salt - Salt Hydration<FONT size="+1"> </P
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><FONT size="+1">Aluminum in desert soils<FONT size="+1"> </P
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><FONT size="+1">Gypsum is result of acid rain reaction<FONT size="+1"> </P
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><FONT size="+1">Tafoni - Weathering pits of desert - near coasts - Rain/dew/fog<FONT size="+1"> </P
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><FONT size="+1">- Namib Desert, South West Africa<FONT size="+1"> </P
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><FONT size="+1">Above spray zone on coast<FONT size="+1"> </P
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><FONT size="+1">Frost wedge (H2o) expands 9% (permafrost)<FONT size="+1"> </P
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><FONT size="+1">Biodegradation - mineral root/rock interaction<FONT size="+1"> </P
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><FONT size="+1">Physical (6x) greater than chemical oxidation of mineral/weathering<FONT size="+1"> </P
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><FONT size="+1">Carbonation - Rx with C02<FONT size="+1"> </P
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><FONT size="+1">Hydolysis - h20 chem rx<FONT size="+1"> </P
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><FONT size="+1">Hydration - add h20<FONT size="+1"> </P
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><FONT size="+1">Chelation and exchange- oxygen in blood.<FONT size="+1"> </P
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><FONT size="+1">Mineral to Organic compounds<FONT size="+1"> </P
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><FONT size="+1">Dissolution - Congruent if components all soluable<FONT size="+1"> </P
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><FONT size="+1">Incongruent if all components are not in solution.<FONT size="+1"> </P
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><FONT size="+1">Oxidation-   Pyrite FeS2 (fools gold) (yellow)<FONT size="+1"> </P
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