Physical Geology On-line Lab and Helpful Lab Hints

Exercise 15: Geologic Maps

Problem 4

• See the annotated image here for a guide to the features of the map and its key.

1. Back to page 267.  Since you do not have a cross-section, you will need to use the ages of the rock layers to determine the type of structure.
2. See the map.
3. Remember lab 14? An answer you used there (twice, I hope) will help you here.
4. This is easy, given the map key, but if you weren't...(hint: try the lab book on page 248 & 249)
5. Find Edgemont on the map, see which rock unit is present, look at the map key for a hint on what lies beneath.

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last updated: 2020-04-04