GEOB 103 Study Guide - Midterm Guide: Shear Strength, Ultimate Tensile Strength, Sediment Transport
13 Apr 2016
School
Department
Course
Professor
Document Summary
Colluvium the potenial mobile hillslope that overlies a more stable substrate, created by weathering and moves downslope as a result of gravity induced mass wasing. Alluvium potenial mobile hillslope deposited by rivers. Till - potenial mobile hillslope deposited by glaciers. Loess - potenial mobile hillslope created by wind. Shear strength ability to resist shearing stress. Angle of internal fricion a measure of fricional strength commonly referred to as fricion angle. Cohesion the tendency of a material to sick to itself. Normal stress the material"s unit weight, the product of bulk density and gravitaional acceleraion, perpendicular to the slope. Cohesion of weathered rock, soil, and unconsolidated sediment is much lower than that of intact rock. Many slope failures involve the sliding of surface soil and sediment mantle over underlying bedrock. Sediment transport processes on hillslopes include difusive like processes. Rainwash rainfall events that moves signiicant amount of sediment.
