The Volcanic Fine Grained Compositional Equivalent Of Granite

Gabbro is a coarse grained mafic igneous rock made with mainly mafic minerals like pyroxene and only minor plagioclase. Click the circle by an answer with the mouse then click on the submit button to get a response. The rock that is the fine grained equivalent of granite is.

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Aplite Is A Fine Grained And Usually Light Colored Plutonic Rock Aplite Usually Solidified In A Narrow Cr Rock Types Rocks And Minerals Minerals And Gemstones

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Its principal minerals are feldspars quartz and mica.

The volcanic fine grained compositional equivalent of granite.

It contains more than 68 weight of silica in composition and is granular and coarse grained in texture. Moh s scale is. Peridotite never contains olivine. Granites and rhyolites compositionally equivalent to granite but of a fine grain size are composed mainly of orthoclase feldspar quartz plagioclase feldspar mica and amphibole.

Intermediate rocks are roughly even mixtures of felsic minerals mainly plagioclase and mafic minerals mainly hornblende pyroxene. A vesicular rock also known as cinder. Material consisting of rock glass ash and scoria ejected during violent volcanic eruptions. Igneous rocks and volcanoes practice exam questions written by timothy h.

The softest mineral on mr. Gabbro is the fine grained equivalent to basalt. The countertops in your kitchen might be made of granite as this rock is. Mafic rocks are dominated by plagioclase and pyroxene even if you can t see them with the naked eye and smaller amounts of olivine.

Rhyolite lavas are the most common lavas seen at mid ocean ridges. Which rock is the fine grained equivalent of granite. Mauna loa in hawaii is situated on a hot spot. Igneous rocks are classified according to their mineral content.

The fine grained equivalent of granite. Ultramafic rocks are dominated by olivine and or pyroxene. One example of an aphanitic rock with felsic composition. A good example is granite which is a very hard plutonic rock.

You will be told if your answer is correct or not and will be given some comments. Heaton professor of earth sciences university of south dakota. Granite the equivalent of its extrusive volcanic rock type rhyolite is a very common type of intrusive igneous rock. The general physical appearance of a rock as observed in reflected light.

Because mafic lava is more mobile it is less common than basalt. Therefore plutonic rocks have coarse grained crystals. It is the fine grained compositional equivalent of diorite. Gabbro is a major component of the lower oceanic crust.

This chart illustrates the generalized mineral composition of igneous rocks.

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