Graded bedding forms when ____.
A) erosion planes off a portion of the sea bottom
B) sediment is deposited on a steep slope or grade
C) turbidity currents deposit first coarse-grained sediment then fine-grained sediment
D) cross-bedding is truncated at top and curved (or tangential) at bottom
E) turbidity currents deposit first fine-grained sediment then coarse-grained sediment

Question

Quizplus · Accepted Answer

Graded bedding forms when turbidity currents deposit sediment in layers that become progressively finer as the current slows down. This results in a sequence of sedimentary layers that are sorted by grain size, with the largest grains at the bottom and the smallest grains at the top.

Graded Bedding Forms When ____