Question

select the correct answer.
which rock feature is the line running between points a and b most likely to be?
image of a rock formation with points a and b
options:
a. rock strata
b. sill
c. dike
d. fault

Explanation:

To determine the rock feature between A and B, we analyze each option:

• A. Rock strata: Strata are horizontal layers, but the line between A and B appears to be a fracture with displacement, not horizontal layering.
• B. Sill: A sill is a horizontal igneous intrusion parallel to rock layers, which does not match the linear feature with apparent displacement.
• C. Dike: A dike is a vertical/steep igneous intrusion cutting across layers, but the feature here looks like a fracture with movement, not an intrusion.
• D. Fault: A fault is a fracture in rock where movement (displacement) has occurred. The line between A and B likely shows displaced rock layers, consistent with a fault.

Answer:

D. fault