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A transform fault or transform boundary, is a fault along a plate boundary where the motion is predominantly horizontal. [1] It ends abruptly where it connects to another plate boundary, either another transform, a spreading ridge, or a subduction zone. [2] A transform fault is a special case of a strike-slip fault that also forms a plate boundary.
Globally most fault zones are located on divergent plate boundaries on oceanic crust. This means that they are located around mid-ocean ridges and trend perpendicular to them. The term fracture zone is used almost exclusively for features on oceanic crust; similar structures on continental crust are instead termed transform or strike slip faults.
Both transform faults continue eastward and westward as inactive fracture zones. The Charlie–Gibbs fracture zone has large amounts of mid-ocean ridge igneous and metamorphic rocks. [ 3 ] : 2 At the eastern termination off shore of Newfoundland there is an igneous province found within the otherwise nonvolcanic rifted margin in the region of ...
Strike-slip tectonics or wrench tectonics is a type of tectonics that is dominated by lateral (horizontal) movements within the Earth's crust (and lithosphere).Where a zone of strike-slip tectonics forms the boundary between two tectonic plates, this is known as a transform or conservative plate boundary.
Divergent boundary – Linear feature that exists between two tectonic plates that are moving away from each other; Extensional tectonics – Geological process of stretching planet crust; Isostasy – State of gravitational equilibrium between Earth's crust and mantle; Leaky transform fault – Transform fault producing new crust
An interplate earthquake event occurs when the accumulated stress at a tectonic plate boundary are released via brittle failure and displacement along the fault. There are three types of plate boundaries to consider in the context of interplate earthquake events: [4] Transform fault: Where two boundaries slide laterally relative to each other.
[4] [5] 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.
Thorough reconstruction of the Macquarie triple junction begins at 33.3 Mya, in respect to Anomaly 13o, and can be simply described as a southeastward migration of approximately 1100 km in respect to the Indo-Australian plate. [5] The total migration was largely driven by the Australian–Pacific transform boundary.