Last time Viscosity determines the ability of a melt to releases gasses coming out of solution Viscosity depends on silica content and TEMPERATURE Mafic.
Ores Principally we discuss ores as sources of metals However, there are many other resources bound in minerals which we find useful How many can we think.
Ore deposit environments Magmatic –Cumulate deposits – fractional crystallization processes can concentrate metals (Cr, Fe, Pt) –Pegmatites – late staged.
Http://eps.berkeley.edu/courses/eps50/documents/lecture31.mineralresources.pdf.
Weathering and Soils. Earth’s surface processes Earth’s surface processes First some definitions: Weathering – Physical breakdown and chemical alteration.
