The Volcanic Fine Grained Compositional Equivalent Of Granite

Igneous rocks are classified according to their mineral content.

The volcanic fine grained compositional equivalent of granite.

The rock that is the fine grained equivalent of granite is. Moh s scale is. Ultramafic rocks are dominated by olivine and or pyroxene. Granite the equivalent of its extrusive volcanic rock type rhyolite is a very common type of intrusive igneous rock.

Mauna loa in hawaii is situated on a hot spot. Intermediate rocks are roughly even mixtures of felsic minerals mainly plagioclase and mafic minerals mainly hornblende pyroxene. Gabbro is a coarse grained mafic igneous rock made with mainly mafic minerals like pyroxene and only minor plagioclase. Gabbro is the fine grained equivalent to basalt.

A good example is granite which is a very hard plutonic rock. Mafic rocks are dominated by plagioclase and pyroxene even if you can t see them with the naked eye and smaller amounts of olivine. The softest mineral on mr. One example of an aphanitic rock with felsic composition.

Its principal minerals are feldspars quartz and mica. You will be told if your answer is correct or not and will be given some comments. This chart illustrates the generalized mineral composition of igneous rocks. Therefore plutonic rocks have coarse grained crystals.

A vesicular rock also known as cinder. Material consisting of rock glass ash and scoria ejected during violent volcanic eruptions. It contains more than 68 weight of silica in composition and is granular and coarse grained in texture. Which rock is the fine grained equivalent of granite.

Peridotite never contains olivine. The fine grained equivalent of granite. 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. Click the circle by an answer with the mouse then click on the submit button to get a response.

It is the fine grained compositional equivalent of diorite. The general physical appearance of a rock as observed in reflected light. Heaton professor of earth sciences university of south dakota. The countertops in your kitchen might be made of granite as this rock is.

Gabbro is a major component of the lower oceanic crust.