Which of the following best describes sets of fractures in relatively fresh bedrock,such as granite,that are roughly parallel to the land surface?
A)thermal expansion cracks
B)sheeting fractures
C)hydrolytic failures
D)columnar joints

Question

Quizplus · Accepted Answer

Sheet fractures are sets of fractures in fresh bedrock that are roughly parallel to the land surface. They are caused by expansion due to the release of confining pressure as overlying rock is eroded. Thermal expansion cracks are caused by temperature changes, hydrolytic failures are caused by chemical reactions, and columnar joints are formed in lava flows.

Which of the Following Best Describes Sets of Fractures in Relatively