Continental crust & Harzburgite - Unionpedia, the concept map

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Difference between Continental crust and Harzburgite

Continental crust vs. Harzburgite

Continental crust is the layer of igneous, metamorphic, and sedimentary rocks that forms the geological continents and the areas of shallow seabed close to their shores, known as continental shelves. Harzburgite, an ultramafic, igneous rock, is a variety of peridotite consisting mostly of the two minerals olivine and low-calcium (Ca) pyroxene (enstatite); it is named for occurrences in the Harz Mountains of Germany.

Basalt

Basalt is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the surface of a rocky planet or moon.

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Craton

A craton (or; from κράτος "strength") is an old and stable part of the continental lithosphere, which consists of Earth's two topmost layers, the crust and the uppermost mantle.

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Fractional crystallization (geology)

Fractional crystallization, or crystal fractionation, is one of the most important geochemical and physical processes operating within crust and mantle of a rocky planetary body, such as the Earth.

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Igneous rock

Igneous rock, or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic.

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Lithosphere

A lithosphere is the rigid, outermost rocky shell of a terrestrial planet or natural satellite.

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Mafic

A mafic mineral or rock is a silicate mineral or igneous rock rich in magnesium and iron.

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Mantle (geology)

A mantle is a layer inside a planetary body bounded below by a core and above by a crust.

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Oceanic crust

Oceanic crust is the uppermost layer of the oceanic portion of the tectonic plates.

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Plate tectonics

Plate tectonics is the scientific theory that Earth's lithosphere comprises a number of large tectonic plates, which have been slowly moving since 3–4 billion years ago.

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