Erratics are large boulders that were picked up by glaciers and deposited randomly in areas that do not match the rock type of the surrounding bedrock, indicating that they were transported from a different location.

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What Are Erratics

Question 12

Multiple Choice

What are erratics?

A) conflicting dates of glaciation obtained by dating organic material found in glaciers
B) cross-beds that do not match the overall outwash cross-bedding scheme
C) large boulders deposited randomly by glaciers
D) valleys with glacial striations that oppose the striations in adjacent valleys

Correct Answer: