Dictionary:Fig F-4

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FIG. F-4. Fault types. (Continued). (e) Wrench (strike-slip) faulting. A wrench fault often has associated secondary wrench, normal, and thrust faults and folding at roughly 30° to the wrench fault. Wrench fault traces are often en echelon rather than continuous. (f) Right-lateral wrench fault. Components of convergence or divergence may produce flower structures (see Figure F-12). (From Sheriff and Geldart, 1995, 369–370.) (g) Transitions from fault to fault may be accompanied by tear faults, folds, or in other ways. (h) Faulting associated with subduction zone. The accretionary wedge is generally built by underthrusting. (From Lowell, 1985.) (i) Transform fault offsetting spreading center. Rift faulting associated with extension is usually asymmetric. (From Bally and Snelson, 1980.)