Geology Reference
In-Depth Information
Table 5.2.
Bedding attitudes, Greasy Cove
anticline, northeastern Alabama
5.8.3
Structure of a Selected Map Area
Use the map of a selected structure (for example, Fig. 3.3 or 3.29) to answer the follow-
ing questions. Measure and list all the bedding attitudes on the map. Plot the attitudes
on a stereogram and a tangent diagram. What fold geometry is present? Which dia-
gram gives the clearest result? Explain. Define the locations of the crest and trough
traces from the map. Are the directions the same as given by the attitude diagrams?
Find the attitudes of the axial planes, and locate the axial-plane traces on the map.
What method did you use and why? What are the problems, if any, with the interpre-
tation? Do the axial-surface traces coincide with the crest and trough traces? What are
the orientations of the axial-surface intersection lines? Show where these intersection
lines pierce the outcrop.
