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Strike-slip faults with left-lateral motion are also known as sinistral faults and those with right-lateral motion as dextral faults. [19] Each is defined by the direction of movement of the ground as would be seen by an observer on the opposite side of the fault.
For example, two overlapping left lateral fault must have a left-step-over to create a pull-apart basin. This is illustrated in the accompanying figures. A regional strike slip fault is referred to as a principle displacement zone (PDZ). Connecting the tips of step over faults to the opposite fault are bounding basin sidewall faults.
Lateral strike-slip faults. Strike-slip faults occur when the blocks slide against each other laterally, parallel to the plane. The direction of the slip can be observed from either side of the fault, with the far block moving to the left indicating a left lateral slip, and the converse indicating a right lateral slip. See animation here [5]
The Garlock Fault is a left-lateral strike-slip fault running northeast–southwest along the north margins of the Mojave Desert of Southern California, for much of its length along the southern base of the Tehachapi Mountains.
The Motagua Fault (also, Motagua Fault Zone) is a major, active left lateral-moving transform fault which cuts across Guatemala. It forms part of the tectonic boundary between the North American plate and the Caribbean plate .
According to the American Museum of Natural History, the Anatolian transform fault system is "probably the most active in the world". [6] The East Anatolian Fault, a left lateral transform fault, forms a boundary with the Arabian plate. [7] To the south and southwest is a convergent boundary with the African plate.
It is a zone of left lateral displacement, signifying the relative motions of the two plates. [3] Both plates are moving in a general north-northeast direction, but the Arabian plate is moving faster, resulting in the observed left lateral motions along the fault of approximately 107 km at its southern end.
The Altyn Tagh Fault (ATF) is a 2,000 km long, [1] [2] active, sinistral (left lateral) strike-slip fault that forms the northwestern boundary of the Tibetan Plateau with the Tarim Basin. It is one of the major sinistral strike-slip structures that together help to accommodate the eastward motion of this zone of thickened crust , relative to ...