Taphonomists have determined that the Olduvai bone and stone-tool sites were likely not deposited by moving water because the
A) bones do not contain characteristic water markings.
B) sediments surrounding the bones do not contain water markings.
C) sediments surrounding the bones are inverted, so that the top layers are oldest.
D) sediments surrounding the bones and tools are not graded by size and weight.

Question

Quizplus · Accepted Answer

The lack of grading by size and weight in the sediments surrounding the bones and tools indicates that they were not deposited by moving water, which typically sorts materials in this manner.

Taphonomists Have Determined That the Olduvai Bone and Stone-Tool Sites