GEOL 1001 : Geology Final
Document Summary
Final will be 50 old questions and 30 new ones. Mass wasting includes all processes by which rock/soil move downhill under influence of gravity. Is a consequence of weathering, and is important part of general erosion, especially in mountainous areas. In the usa, excavation for buildings/homes causes more soil to be transported than by all the natural processes. Is the maximum angle from the horizontal that material will lie without cascading down. Depends on shape/size of material grains and degree of wetness. Steepness of slope for rocks depends on type of rock and degree of weathering. Shales and volcanic ash weather to gentle inclines. Hard sandstones, limestones, granite weather to almost vertical cluffs. What triggers mass movements: if type of material, moisture and steepness of slop are right , heavy rainfall, earthquakes can be the trigger. for unconsolidated material look to soil creep slow downhill movement of loose material. Mass wasting common in all plate tectonic settings.
