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Soil Chemistry (Chemical Weathering Processes (Dissolution (Based on H2O …
Soil Chemistry
Chemical Weathering Processes
Dissolution
Based on H2O :small_red_triangle:-ing chems
Cations/anions in solution
Precipitate
New minerals
pH dependant
Solubilities
High solubility
Carbonates
calcite
dolomite
Evaporites
Low solubility
Metal oxides
Aluminosilicates
Vary widely
Hydrolysis
H2O split
Positive material
Hydroxide ions
Adds H to Chem
Orthoclase
Hydration/Dehydration
Oxidation/Reduction
Intro
Chem :small_red_triangle: causal processes
Biological
Physical
Chemical
Chem :small_red_triangle: result from
Atmospheric processes
Interactions with organisms
Reactions w/ H2O
Human activities
Soil pH
Soil Salinity