Which of the following statements concerning mudflows is NOT true?
A) Mudflows may be caused by heavy rains or melting snow.
B) In hilly areas, mudflows move down the canyons and stream valleys.
C) Mudflows deposit talus slopes.
D) Mudflows can move and carry very large boulders and other coarse debris.

Question

Quizplus · Accepted Answer

Mudflows do not deposit talus slopes. Talus slopes are formed by the accumulation of rock debris at the base of cliffs or steep slopes due to weathering and erosion. Mudflows, on the other hand, may deposit sediment in floodplains, valley bottoms, or at the base of steep slopes, but this sediment is typically finer-grained and more cohesive than talus slopes.

Which of the Following Statements Concerning Mudflows Is NOT True