Consider a steep highway cut made by removing slightly weathered to fresh, fractured, granite bedrock. Which of the following situations is most stable against rockslides?
A. one set of widely spaced, sub-horizontal fractures
B. two sets of fractures, one widely spaced and sub-horizontal, the other inclined away from the highway cut
C. one set of widely spaced fractures inclined towards the road cut
D. two sets of fractures, one inclined toward the road cut and the other away
Ans: A. one set of widely spaced, sub-horizontal fractures
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