Inasmuch as “left” and “right” pertain to lateral situations it is proposed that “lateral” be deleted from the compound adjectives employed in such terms as “right-lateral slip faults”. Instead, the simpler and clearer expressions such as “left offset,” “right wrenching,” “left slip,” “right separation,” etc., are better. The terms “sinistral” or “dextral” may be substituted for “left” and “right,” but the confusion currently taught that “sinistral” when applied refers to slip, whereas “left-lateral” refers to separation should be avoided.

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