Question

the diagram shows cross - cutting relationships among rocks. which statement accurately describes the geologic features? d occurred after b. d occurred before a. a formed after the horizontal layer above was deposited. f formed before the horizontal layer above was deposited.

Explanation:

• According to the principle of cross - cutting relationships in geology, a rock or feature that cuts through another is younger. Feature D cuts through B, so D is younger (occurred after) B.
• Feature A is below the horizontal layer above it, so A formed before the horizontal layer above was deposited. Feature F is also below the horizontal layer above it, so F formed before the horizontal layer above was deposited. Feature D cuts through A, so D occurred after A.

Answer:

D occurred after B.