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Slab gap hypothesis

Index Slab gap hypothesis

In geology, the slab gap hypothesis is one of the explanations put forward to explain several instances of crustal extension that occur inland near former subduction zones. [1]

27 relations: Asthenosphere, Basalt, Basin and Range Province, California, Columbia Plateau, Continental crust, Crust (geology), Farallon Plate, Flood basalt, Geology, Great Basin, Lava, Lithosphere, Mantle (geology), Mid-ocean ridge, North American Plate, Oceanic trench, Oregon, Plate tectonics, Rift, San Andreas Fault, Shield volcano, Slab (geology), Slab window, Subduction, Volcanism, Washington (state).

Asthenosphere

The asthenosphere (from Greek ἀσθενής asthenḗs 'weak' + "sphere") is the highly viscous, mechanically weak and ductilely deforming region of the upper mantle of the Earth.

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Basalt

Basalt is a common extrusive igneous (volcanic) rock formed from the rapid cooling of basaltic lava exposed at or very near the surface of a planet or moon.

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Basin and Range Province

The Basin and Range Province is a vast physiographic region covering much of the inland Western United States and northwestern Mexico.

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California

California is a state in the Pacific Region of the United States.

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Columbia Plateau

The Columbia Plateau or Columbia Basin is a geographic region located almost entirely in Eastern Washington and north-central Oregon—with the eastern edge spilling over into North Idaho The area is characterized by its mostly semi-arid climate (Bsk under the Köppen classification)—with some areas falling under the desert (BWk) and mediterranean (Csa and Csb) classifications—resulting in a shrub-steppe environment.

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Continental crust

Continental crust is the layer of igneous, sedimentary, and metamorphic rocks that forms the continents and the areas of shallow seabed close to their shores, known as continental shelves.

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Crust (geology)

In geology, the crust is the outermost solid shell of a rocky planet, dwarf planet, or natural satellite.

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Farallon Plate

The Farallon Plate was an ancient oceanic plate that began subducting under the west coast of the North American Plate—then located in modern Utah—as Pangaea broke apart during the Jurassic period.

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Flood basalt

A flood basalt is the result of a giant volcanic eruption or series of eruptions that covers large stretches of land or the ocean floor with basalt lava.

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Geology

Geology (from the Ancient Greek γῆ, gē, i.e. "earth" and -λoγία, -logia, i.e. "study of, discourse") is an earth science concerned with the solid Earth, the rocks of which it is composed, and the processes by which they change over time.

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Great Basin

The Great Basin is the largest area of contiguous endorheic watersheds in North America.

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Lava

Lava is molten rock generated by geothermal energy and expelled through fractures in planetary crust or in an eruption, usually at temperatures from.

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Lithosphere

A lithosphere (λίθος for "rocky", and σφαίρα for "sphere") is the rigid, outermost shell of a terrestrial-type planet, or natural satellite, that is defined by its rigid mechanical properties.

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Mantle (geology)

The mantle is a layer inside a terrestrial planet and some other rocky planetary bodies.

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Mid-ocean ridge

A mid-ocean ridge (MOR) is an underwater mountain system formed by plate tectonics.

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North American Plate

The North American Plate is a tectonic plate covering most of North America, Greenland, Cuba, the Bahamas, extreme northeastern Asia, and parts of Iceland and the Azores.

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Oceanic trench

Oceanic trenches are topographic depressions of the sea floor, relatively narrow in width, but very long.

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Oregon

Oregon is a state in the Pacific Northwest region on the West Coast of the United States.

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Plate tectonics

Plate tectonics (from the Late Latin tectonicus, from the τεκτονικός "pertaining to building") is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of the Earth's lithosphere, since tectonic processes began on Earth between 3 and 3.5 billion years ago.

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Rift

In geology, a rift is a linear zone where the lithosphere is being pulled apart and is an example of extensional tectonics.

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San Andreas Fault

The San Andreas Fault is a continental transform fault that extends roughly through California.

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Shield volcano

A shield volcano is a type of volcano usually composed almost entirely of fluid lava flows.

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Slab (geology)

In geology, a slab is the portion of a tectonic plate that is being subducted.

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Slab window

In geology, a slab window is a gap that forms in a subducted oceanic plate when a mid-ocean ridge meets with a subduction zone and plate divergence at the ridge and convergence at the subduction zone continue, causing the ridge to be subducted.

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Subduction

Subduction is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced or sinks due to gravity into the mantle.

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Volcanism

Volcanism is the phenomenon of eruption of molten rock (magma) onto the surface of the Earth or a solid-surface planet or moon, where lava, pyroclastics and volcanic gases erupt through a break in the surface called a vent.

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Washington (state)

Washington, officially the State of Washington, is a state in the Pacific Northwest region of the United States.

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References

[1] https://en.wikipedia.org/wiki/Slab_gap_hypothesis

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