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igneous rock
(redirected from Magmatic rocks)

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igneous rock: see rock rock, aggregation of solid matter composed of one or more of the minerals forming the earth's crust. The scientific study of rocks is called petrology. Rocks are commonly divided, according to their origin, into three major classes—igneous, sedimentary, and
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igneous rock

Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary rocks. Though they vary widely in composition, most igneous rocks consist of quartz, feldspars, pyroxenes, amphiboles, micas, olivines, nepheline, leucite, and apatite. They may be classified as intrusive or extrusive rocks.

igneous rock
A class of rock formed by change of the molten material to the solid state; generally termed granite if coarse-grained.
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Remanent magnetism of mafic magmatic rocks, if primary, can provide paleo-intensities of the geomagnetic field at the time of crystallization (e.
Taking the pulse of planet earth: a proposal for a new ... by Bleeker, Wouter / Geoscience Canada
The anorogenic magmatic rocks within the Estonian basement have been relatively well studied.
Precambrian basement of Estonia by Soesoo, Alvar / Proceedings of the Estonian Academy of Sciences: Geology
Nevertheless, exploration of massifs of magmatic rocks shows amazing constancy of their composition in vast areas.
Distinctive properties of biological systems: the all-around ... by Kompanichenko, Vladimir / Frontier Perspectives
 
 
 
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