1. Using the Ennis Gulch Quadrangle , which kind of mass wasting most likely lef

Question

1. Using the Ennis Gulch Quadrangle, which kind of mass wasting most likely left the deposit seen southwest of Ennis Gulch, a type of flow or a type of slide?2.

2. What evidence shown on the map supports your answer?

3. Using the 5,000’ contour as the top of the deposit, how thick is the deposit at the end (the "toe") of the deposit?

4. Although the deposit is somewhat irregular, assume that it is square or rectangular in shape.

Estimate the length of the two sides from the toe of the deposit to the point that it is in contact with the mountain front. Make sure you review the instructions for obtaining these measurements.

Finally, calculate the surface area (in square feet) of the deposit using standard area calculations.

5. Assuming that your answer to the previous question above represents the uniform thickness of the deposit (a simplistic assumption), calculate the total volume of the deposit using standard volume calculations.

For better quality and larger image use this link: https://qmem.riosalado.edu/myrepository_res/gph/gph111/L11_Ennis_Gulch_Quandrangle.pdf

Explanation / Answer

1)

Mass wasting, also known as slope movement or mass movement, is the geomorphic process by which soil, sand, regolith, and rock move downslope typically as a mass, largely under the force of gravity, but frequently affected by water and water content as in submarine environments and mudflows.The type of mass flow rate seen in Ennis Gulch Quadrangle is land slide

Landslides

A landslide, also called a landslip, is a rapid movement of a large mass of earth and rocks down a hill or a mountainside. Little or no flow age of the materials occurs on a given slope until heavy rain and resultant lubrication by the same rainwater facilitate the movement of the materials, causing a landslide to occur. The common forms of landslides are slump, debris slide, rock slide, rock fall, debris fall and avalanche.

2) The lines of Rock Grand in the map is the evidence

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