Mass Wasting

Jun 28th, 2015
Studypool Tutor
Price: $10 USD

Tutor description

I. Definition – The bulk movement of weathered and broken rock materials down slopes under the influence of gravity. II. Factors affecting mass movements A. Gravity – the force of gravity provides the energy that causes material to move downhill. Gravity is always acting!!

Word Count: 948
Showing Page: 1/7
Mass Wasting I. Definition The bulk movement of weathered and broken rock materials down slopes under the influence of gravity.II. Factors affecting mass movementsA. Gravity the force of gravity provides the energy that causes material to move downhill. Gravity is always acting!!B. Internal cohesion (strength) the characteristic property of a rock or soil that measures how well it resists being deformed or broken by forces such as gravity.1. Solid bedrock very strong, can form steep slopes andcliffsa. Fractures reduce rock strength and offer surfacesfor easy slip, especially if the fractures are orientednear to the downhill slope directionb. Bedding planes in sedimentary rocks (especially thoseinvolving clay or other weak layers) nearly parallelto the slope are very susceptible to sliding.2. Soil an unconsolidated material (sand, gravel)a. Uncemented dry sand an coarser fragments have verylittle internal cohesion and assume an angle of reposewhich is the maximal slope at which material will remainstable.1) For dry sand this angle is about 30ob. Clays in the sediment promote higher internal cohesionin dry unconsolidated material, but they allow for easierdownhill slippage when wet.C. Water1. Clay becomes plastic and weak when it absorbs water. Wetclays not only act as lubricants for mass movements, but tendto flow out laterally from beneath burdens, thus causingsubsidence an slump

Review from student

Studypool Student
" The best tutor out there!!!! "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1823 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors