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a comprehensive term for any type of downslope movement of rock or soil as a coherent mass.
a type of ground failure characterized by nearly vertical deformation/Very slow to rapidly sinking or settling of Earth materials.
-Withdrawal of Fluids
This term is inclusive of Mudflows, Rockfalls, and Snow or Debris (course material) Avalanches
Backward rotation as material moves along a curved slope which Results in "step-like" formations
This Type of Mass Movement happens over permanently frozen ground. It Occurs in summer when uppers layers thaw and lower layers stay frozen
These are Movement on gentle slopes that are Triggered by earthquakes that liquefy the underlying material
This Most sudden form of mass movement Involves gravity. Blocks fall from cliffs, debris pile
Movement of soil, weak shale, or clay that is saturated with water which is Usually triggered by heavy or seasonal rainfall. Occurs where farming has stripped vegetation or locations of previous landslides. Involves unconsolidated material
Slow moving, accompanied by slump that is Not confined to a channel, more common in humid areas
Rapid moving flow of Unconsolidated surface material, steep slopes with intermittent rain, and sparse vegetation.
Happens in dry areas with heavy rainstorms, occupy stream channels
geologic surfaces of weakness in slope material. It has Foliation planes in schist, Bedding planes of sedimentary rock, and Fractures
Affects of Water on Slope Stability
Saturating slopes (shallow soil slips), Years of water infiltration into slope (slumps), and Eroding base or toe of slope.
This factor adds weight to the slope, the root system adds cohesion to slope materials, and it provides cover to lessen the impact of rain.
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