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 initially deposit coarse sediment then fine sediment.
D) cross-bedding is truncated.
E) turbidity currents deposit first fine sediment followed by coarse sediment.

Question

Quizplus · Accepted Answer

Graded bedding occurs when a turbidity current (a type of underwater landslide) deposits sediments in a sequence from coarse at the bottom to fine at the top. This happens because the larger, heavier particles settle first as the current slows down, followed by progressively finer particles.

Graded Bedding Forms When