Marash triple junction in the context of "Anatolian plate"

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⭐ Core Definition: Marash triple junction

The Maraş triple junction is a geologic triple junction of three tectonic plates: the Anatolian plate, the African plate and the Arabian plate.

The Maraş triple junction is found where the side-by-side African and Arabian plates, both drifting north and demarcated by the north–south trending Dead Sea Transform (itself an extension of the African Rift Valleys), come up against the Anatolian plate lying across their path at the East Anatolian Fault. The junction site is near the Gulf of Alexandretta, and is ~700 km distant from the Karlıova triple junction. After a long quiescence, the Maraş triple junction was ruptured by the violent 2023 Turkey–Syria earthquake.

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In this Dossier

Marash triple junction in the context of Dead Sea Transform

The Dead Sea Transform (DST) fault system, also sometimes referred to as the Dead Sea Rift, is a series of faults that run for about 1,000 km from the Marash triple junction (a junction with the East Anatolian Fault in southeastern Turkey) to the northern end of the Red Sea Rift (just offshore of the southern tip of the Sinai Peninsula). The fault system forms the transform boundary between the African plate to the west and the Arabian plate to the east. It is a zone of left lateral (sinistral) displacement, signifying the relative motions of the two plates. 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. A component of extension is also present in the southern part of the transform, which has contributed to a series of depressions, or pull-apart basins, forming the Gulf of Aqaba, Dead Sea, Sea of Galilee, and Hula basins. A component of shortening affects the Lebanon restraining bend, leading to uplift on both sides of the Beqaa valley. There is local transtension in the northernmost part of the fault system, forming the Ghab pull-apart basin. The southern part of the fault system runs roughly along the political border of Lebanon and Israel on its western side, and southern Syria and Jordan on the eastern side.

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Marash triple junction in the context of Northern Levant

The Northern Levant is a geographical region in the Eastern Mediterranean, encompassing the northern part of the Levant, between the Mediterranean in the west and the eastern deserts, going south as far as Lebanon's Litani River. It corresponds approximately to the modern-day southern Turkish coastal province of Hatay, Syria excluding the desert northeast of the Euphrates, and Lebanon except for its southern part. A defining feature is the northern section of the Syro-African Rift starting at the Marash triple junction.

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