- Pacific Plate
The Pacific Plate is an oceanic
tectonic platebeneath the Pacific Ocean.
To the north the easterly side is a
divergent boundarywith the Explorer Plate, the Juan de Fuca Plateand the Gorda Plateforming respectively the Explorer Ridge, the Juan de Fuca Ridgeand the Gorda Ridge. In the middle the easterly side is a transform boundarywith the North American Platealong the San Andreas Faultand a boundary with the Cocos Plate. To the south the easterly side is a divergent boundarywith the Nazca Plateforming the East Pacific Rise.
The southerly side is a
divergent boundarywith the Antarctic Plateforming the Pacific-Antarctic Ridge.
The westerly side is a
convergent boundarysubducting under the Eurasian Plateto the north and the Philippine Platein the middle forming the Mariana Trench. In the south, the Pacific Plate has a complex but generally convergent boundary with the Indo-Australian Plate, subducting under it north of New Zealandforming the Tonga Trenchand the Kermadec Trench. The Alpine Faultmarks a transform boundarybetween the two plates, and further south the Indo-Australian Plate subducts under the Pacific Plate forming the Puysegur Trench. The part of Zealandia to the east of this boundary is the plate's largest block of continental crust.
The northerly side is a
convergent boundarysubducting under the North American Plateforming the Aleutian Trenchand the corresponding Aleutian Islands.
The Pacific Plate contains an interior hot spot forming the
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Look at other dictionaries:
Pacific Plate — /pəsɪfɪk ˈpleɪt/ (say puhsifik playt) noun a major tectonic plate underlying the Pacific Ocean … Australian English dictionary
Pacific Plate — Geol. one of the major tectonic divisions of the earth s crust, comprising four sea floor basins; separated from the Nazca, Cocos, and North and South American plates by the East Pacific Rise and San Andreas fault and bounded in the western… … Universalium
Pacific Plate — Geol. one of the major tectonic divisions of the earth s crust, comprising four sea floor basins; separated from the Nazca, Cocos, and North and South American plates by the East Pacific Rise and San Andreas fault and bounded in the western… … Useful english dictionary
plate tectonics — plate tectonic, adj. Geol. a theory of global tectonics in which the lithosphere is divided into a number of crustal plates, each of which moves on the plastic asthenosphere more or less independently to collide with, slide under, or move past… … Universalium
Pacific Ocean — Pacific and North Pacific redirect here. For other uses, see Pacific (disambiguation) and North Pacific (disambiguation). Earth s oceans (World Ocean) Arctic Ocean Atlantic Ocean Indian Ocean Pacific Ocean Southern Ocean … Wikipedia
Pacific Ring of Fire — The Ring of Fire redirects here. For other uses of the term, see Ring of Fire (disambiguation). The Pacific Ring of Fire (see below) … Wikipedia
Plate tectonics — The tectonic plates of the world were mapped in the second half of the 20th century … Wikipedia
Pacific Ocean — an ocean bordered by the American continents, Asia, and Australia: largest ocean in the world; divided by the equator into the North Pacific and the South Pacific. 70,000,000 sq. mi. (181,300,000 sq. km); greatest known depth, 35,433 ft. (10,800… … Universalium
Pacific mountain system — ▪ mountains, North America Introduction series of mountain ranges that stretches along the Pacific coast (Coast Ranges) of North America from northern British Columbia (Canada) to northwestern Mexico. They run for some 4,500 miles (7,250… … Universalium
Pacific-Antarctic Ridge — The Pacific Antarctic Ridge (PAR) is a divergent tectonic plate boundary located on the seafloor of the South Pacific Ocean, separating the Pacific Plate from the Antarctic Plate. It is regarded as the southern section of the East Pacific Rise in … Wikipedia