Two layers of sediment resulting from one year's deposition in a glacial lake are called ___.
A) cross beds
B) ripples
C) varves
D) contourites
E) turbidites

Question

Quizplus · Accepted Answer

Varves are two distinct layers of sediment that form in glacial lakes from seasonal variations in the rate and types of sediment deposition. These layers usually consist of a coarse-grained layer (deposited during the summer months) and a fine-grained layer (deposited during the winter months). By counting the number of varves in a sequence, scientists can determine the age of the sediments and infer information about past climate conditions.

Two Layers of Sediment Resulting from One Year's Deposition in a Glacial