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Magmatism

Index Magmatism

Magmatism is the emplacement of magma within and at the surface of the outer layers of a terrestrial planet, which solidifies as igneous rocks. [1]

36 relations: Anatexis, Andesite, Asthenosphere, Basalt, Bimodal volcanism, Calc-alkaline magma series, Continental crust, Convergent boundary, Divergent boundary, Extrusion, Hawaiian–Emperor seamount chain, Hotspot (geology), Igneous rock, Intrusive rock, Island arc, Lava, Magma, Magma chamber, Mantle (geology), Mantle plume, Mid-ocean ridge, Mountain formation, Oceanic crust, Partial melting, Peraluminous rock, Plate tectonics, Post-glacial rebound, Seafloor spreading, Seamount, Slab detachment, Tectonics, Terrestrial planet, Tholeiitic magma series, Volcanic arc, Volcanism, Yellowstone hotspot.

Anatexis

Anatexis (via Latin from Greek roots meaning "to melt down") in geology, refers to the differential, or partial, melting of rocks, especially in the forming of metamorphic rocks such as migmatites.

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Andesite

Andesite is an extrusive igneous, volcanic rock, of intermediate composition, with aphanitic to porphyritic texture.

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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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Bimodal volcanism

Bimodal volcanism refers to the eruption of both mafic and felsic lavas from a single volcanic centre with little or no lavas of intermediate composition.

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Calc-alkaline magma series

The calc-alkaline magma series is one of two main subdivisions of the subalkaline magma series, the other subalkaline magma series being the tholeiitic.

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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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Convergent boundary

In plate tectonics, a convergent boundary, also known as a destructive plate boundary, is a region of active deformation where two or more tectonic plates or fragments of the lithosphere are near the end of their life cycle.

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Divergent boundary

In plate tectonics, a divergent boundary or divergent plate boundary (also known as a constructive boundary or an extensional boundary) is a linear feature that exists between two tectonic plates that are moving away from each other.

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Extrusion

Extrusion is a process used to create objects of a fixed cross-sectional profile.

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Hawaiian–Emperor seamount chain

The Hawaiian–Emperor seamount chain is a mostly undersea mountain range in the Pacific Ocean that reaches above sea level in Hawaii.

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Hotspot (geology)

In geology, the places known as hotspots or hot spots are volcanic regions thought to be fed by underlying mantle that is anomalously hot compared with the surrounding mantle.

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Igneous rock

Igneous rock (derived from the Latin word ignis meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic.

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Intrusive rock

Intrusive rock (also called plutonic rock) is formed when magma crystallizes and solidifies underground to form intrusions, for example plutons, batholiths, dikes, sills, laccoliths, and volcanic necks.

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Island arc

An island arc is a type of archipelago, often composed of a chain of volcanoes, with arc-shaped alignment, situated parallel and close to a boundary between two converging tectonic plates.

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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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Magma

Magma (from Ancient Greek μάγμα (mágma) meaning "thick unguent") is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth, and is expected to exist on other terrestrial planets and some natural satellites.

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Magma chamber

A magma chamber is a large pool of liquid rock beneath the surface of the Earth.

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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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Mantle plume

A mantle plume is an upwelling of abnormally hot rock within the Earth's mantle, first proposed by J. Tuzo Wilson in 1963.

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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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Mountain formation

Mountain formation refers to the geological processes that underlie the formation of mountains.

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Oceanic crust

Oceanic crust is the uppermost layer of the oceanic portion of a tectonic plate.

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Partial melting

Partial melting occurs when only a portion of a solid is melted.

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Peraluminous rock

Peraluminous rocks are igneous rocks that have a molecular proportion of aluminium oxide higher than the combination of sodium oxide, potassium oxide and calcium oxide.

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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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Post-glacial rebound

Post-glacial rebound (also called isostatic rebound or crustal rebound) is the rise of land masses after the lifting of the huge weight of ice sheets during the last glacial period, which had caused isostatic depression.

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Seafloor spreading

Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.

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Seamount

A seamount is a mountain rising from the ocean seafloor that does not reach to the water's surface (sea level), and thus is not an island, islet or cliff-rock.

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Slab detachment

In plate tectonics, slab detachment or slab break-off may occur during continent-continent or arc-continent collisions.

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Tectonics

Tectonics is the process that controls the structure and properties of the Earth's crust and its evolution through time.

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Terrestrial planet

A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals.

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Tholeiitic magma series

The tholeiitic magma series, named after the German municipality of Tholey, is one of two main magma series in igneous rocks, the other being the calc-alkaline series.

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Volcanic arc

A volcanic arc is a chain of volcanoes formed above a subducting plate, positioned in an arc shape as seen from above.

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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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Yellowstone hotspot

The Yellowstone hotspot is a volcanic hotspot responsible for large scale volcanism in Idaho, Montana, Nevada, Oregon, and Wyoming (in the United States) created as the North American tectonic plate moved across the Yellowstone hotspot.

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Magmatic activity.

References

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

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