How can you identify a left-lateral strike-slip fault from a right-lateral strike-slip fault?

Strike-slip faults are vertical (or nearly vertical) fractures where the blocks have mostly moved horizontally. If the block opposite an observer looking across the fault moves to the right, the slip style is termed right lateral; if the block moves to the left, the motion is termed left lateral.

Explanation:

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2."increase the worth of."

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