Extrusive equivalent of gabbro
WebCooling Rate : rapid, extrusive Intrusive Equivalent : diorite or gabbro Other Characteristics : vesicular like pumice, but denser and darker with larger vesicles Origin: Extrusive/Volcanic Mineral Composition : … Webgabbro; Medium or coarse grained rocks, gabbros Dark green pyroxene in principle (augite and smaller orthopyroxene amounts plus white or green colored plagioclase and black, …
Extrusive equivalent of gabbro
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WebGabbro (sensu stricto) = plagioclase and clinopyroxene Norite = plagioclase and orthopyroxene Troctolite = plagioclase and olivine Gabbronorite = plagioclase with almost equal amounts of clinopyroxene and … WebExpert Answer. 100% (1 rating) Answer: Peridotite Explanation: Peridotite is …. View the full answer. Transcribed image text: Komatiites are the extrusive equivalent of: Granite Peridotites O Gabbro Basalt.
WebGabbro is generally coarse-grained, with crystals in the size range of 1 mm or larger. Finer-grained equivalents of gabbro are called diabase (also known as dolerite ), although the term microgabbro is often used when … Webintrusive plutonic rock composition that is intermediate between gabbro and granite Medium to coarse grained many samples of diorite display a ' salt - and - pepper ' texture due to the near - equal mixture of light - and dark - colored minerals extrusive equivalent : andesite minerals = feldspar , pyroxene , hornblende
WebIgneous rocks. rocks formed by the cooling of molten rock (either magma or lava) Basalt. The most abundant volcanic rock. • Texture: aphanitic. • Composition: mafic (enriched in … WebAug 7, 2024 · Rhyolite is an extrusive igneous rock having cooled much more rapidly than granite giving it a glassy appearance. Are granite and gabbro similar? Granite is a coarse-grained igneous rock with average grain size ranging from 1 to 25 millimeters. Gabbro is generally coarse grained, with crystals in the size range of 1 mm or greater.
WebNov 28, 2024 · Dolerite or diabase are not the extrusive equivalent of gabbro, they are intrusive rocks emplaced at somewhat shallower levels, sometimes called hypabyssal, but they are holocrystalline and...
WebGabbro A dark, medium- to coarse-grained intrusive igneous rock composed of calcium plagioclase, pyroxene, and possibly olivine, but no quartz. It is the intrusive equivalent of basalt and the deep intrusive equivalent of diabase. Shown is a dark, coarse-grained gabbro consisting of black pyroxene and/or hornblende and white plagioclase feldspar. theater luikWebdiorite, medium- to coarse-grained intrusive igneous rock that commonly is composed of about two-thirds plagioclase feldspar and one-third dark-coloured minerals, such as hornblende or biotite. The presence of sodium-rich feldspar, oligoclase or andesine, in contrast to calcium-rich plagioclase, labradorite or bytownite, is the main distinction … theater lufkin txWebExtrusive Equivalent: rare; Other Characteristics: green, olivine-rich composition and granular texture GABBRO. Gabbro is an intrusive mafic plutonic rock. It forms the lower layer of oceanic crust and many … theater lufkin texasWebgabbro, any of several medium- or coarse-grained rocks that consist primarily of plagioclase feldspar and pyroxene. Essentially, gabbro is the intrusive (plutonic) equivalent of … theaterlueuet rotkreuzthe golden record libraryWebFeb 3, 2024 · Basalt is the fine-grained equivalent of gabbro It is the fine-grained equivalent of gabbro. The difference between basalt and gabbro is that basalt is a fine-grained rock while gabbro is a coarse-grained rock. Basalts are composed primarily of magnesium oxide Magnesium Oxide the golden razziesWebApr 15, 2024 · What is the aphanitic equivalent of gabbro? Basalt. Basalt is the aphanitic (fine-textured) extrusive equivalent of gabbro. From the Latin word “pumex”, meaning “pumice”. A vesicular, glassy volcanic rock, generally of rhyolite composition (felsic). the golden records orchestra