Which of the following is not a typical stage in the evolution of a Basin and Range type region?
A)Water erodes the mountains and deposits sediment in the adjacent basins.
B)Alluvial fans and bajadas form along the mountain fronts.
C)Salt flats or playas and occasional playa lakes form.
D)Sediment slowly moves downhill to the sea where it is ultimately deposited.

Question

Quizplus · Accepted Answer

Sediment moving downhill to the sea is not a typical stage in the evolution of a Basin and Range type region. The Basin and Range region is a result of extensional forces causing the mountains to tilt and break into horsts and grabens, which leads to the formation of alluvial fans, playas, and salt flats. The sediment in this region generally stays within the region as it moves downhill due to the closed drainage system, rather than being deposited in the sea.

Which of the Following Is Not a Typical Stage in the Evolution