ConcepTest: Relative Layer Age #39
This material was originally created for
Starting Point:Introductory Geology
and is replicated here as part of the SERC Pedagogic Service.
and is replicated here as part of the SERC Pedagogic Service.
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.
If you would like to help acquire more Before and After statistics for this example, please contact the authors (see link at top of page).