ConcepTest: Relative Layer Age #39
Question:
What principle would be the best to apply to determine the relative order in which rock units A and B in the image below were formed?
Image courtesy of USGS
a. Original horizontality
b. Cross-cutting relationships
c. Superposition
Image courtesy of USGS
a. Original horizontality
b. Cross-cutting relationships
c. Superposition
Student Responses:
No data yet. The correct response is b.
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