Answer to Question 1In a plunging anticline, all rock layers dip away from the fold axis, and the oldest rocks are in the
center of the fold with younger rocks on the outside. In a plunging syncline, all rock layers dip toward
the fold axis, and the youngest rock layers are found in the core.
Answer to Question 2The Bighorn Mountains rose vertically along a fracture. The fracture did not penetrate to the surface,
so as uplift of the mountains proceeded, the near-surface rocks were bent so that they now appear to be
draped over the margin of the uplifted block.
