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This arc was the subject of constant tectonism and sea-level fluctuation, but lasted until the mid-Eocene and intermittently formed a land bridge along the eastern and northern boundaries of the Caribbean plate. [11] What would eventually become present-day Central America, part of the western plate boundary, was still isolated in the Pacific.
Some researchers believe that the EPGFZ and the Septentrional-Orient fault zone bound a microplate, dubbed the Gonâve microplate, a 190,000 km 2 (73,000 sq mi) area of the northern Caribbean plate that is in the process of shearing off the Caribbean plate and accreting to the North America plate. [3]
Map showing Earth's principal tectonic plates and their boundaries in detail. These plates comprise the bulk of the continents and the Pacific Ocean.For purposes of this list, a major plate is any plate with an area greater than 20 million km 2 (7.7 million sq mi)
The Motagua Fault, which crosses through Guatemala, is a transform boundary between the southern edge of the North American plate and the northern edge of the Caribbean plate. New Zealand's Alpine Fault is another active transform boundary. The Dead Sea Transform (DST) fault which runs through the Jordan River Valley in the Middle East.
The Gonâve microplate, showing location of the main fault zones. The Septentrional–Orient fault zone (SOFZ) is a system of active coaxial left lateral-moving strike slip faults that runs along the northern side of the island of Hispaniola where Haiti and the Dominican Republic are located and continues along the south of Cuba along the northern margin of the Cayman Trough.
Bathymetry of the North American plate and Caribbean plate boundary zone showing the major features of the Puerto Rico-Virgin Island Microplate: the Puerto Rico Trench to the north; the Muertos Trough the south; the Anegada Trough and Virgin Islands Basin within the Anegada Passage to the east; and the Mona Canyon within the Mona Passage to the ...
The Gonâve microplate, showing the fault zones that bound it. The Gonâve microplate forms part of the boundary between the North American plate and the Caribbean plate.It is bounded to the west by the Mid-Cayman Rise spreading center, to the north by the Septentrional-Oriente fault zone and to the south by the Walton fault zone and the Enriquillo–Plantain Garden fault zone.
The northern margin of the Chortis Block is the Motagua-Polochic fault of the North American-Caribbean strike-slip boundary. The Cocos/Farallon Plate subducts beneath its western margin resulting in the Middle America Trench and the Central America Volcanic Arc. Miocene-Holocene-aged rifts in the northern and western Chortis Block is the result ...