What generally displaces the blocks on a cliff, forming talus piles?
Answer to relevant QuestionsWhat is colluvium?What causes material that was previously stable to move downslope under the influence of gravity, either slowly or rapidly?Many massive debris flows are related to volcanism, as in 1985 when a volcanic eruption in Columbia caused debris flows that buried a village and about 20,000 people. Why are volcanoes often the sites of massive debris flows?Compared to rivers, do these thin sheets of water contribute significantly to erosion?The gradient of a stream can be defined as the drop in stream elevation along its course and is expressed in meters per kilometer or in feet per mile. A related concept is the slope of a stream, which is defined as the ...
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