GEOL 1031 Lecture Notes - Mobile Agent, Mass Wasting, Ground Vibrations
Document Summary
______________________ the disintegration and decomposition of material at or near the surface. ______________________ the transfer of rock material downslope under the influence of gravity. ______________________ the incorporation and trans-portation of material by a mobile agent, usually water, wind, or ice. Important factors: rock characteristics, mineral composition and solubility, physical features such as joints, climate, temperature and moisture are the most crucial factors, chemical weathering is most effective in areas of warm temperatures and abundant moisture. Rates of weathering: caused by variations in composition, creates unusual and spectacular rock formations and landforms. Process called secondary enrichment: concentrates metals into economical deposits, takes place in one of two ways, removing undesired material from the decomposing rock, leaving the desired elements behind, desired elements are carried to lower zones and deposited. Ssooiill is a combination of mineral matter, water, and air that portion of the regolith (rock and mineral fragments) that supports the growth of plants.
