The Volcanic Fine Grained Compositional Equivalent Of Granite

Therefore plutonic rocks have coarse grained crystals.

The volcanic fine grained compositional equivalent of granite.

Gabbro is a major component of the lower oceanic crust. Igneous rocks are classified according to their mineral content. It is the fine grained compositional equivalent of diorite. The softest mineral on mr.

Granite the equivalent of its extrusive volcanic rock type rhyolite is a very common type of intrusive igneous rock. Click the circle by an answer with the mouse then click on the submit button to get a response. 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.

One example of an aphanitic rock with felsic composition. You will be told if your answer is correct or not and will be given some comments. The fine grained equivalent of granite. Material consisting of rock glass ash and scoria ejected during violent volcanic eruptions.

The countertops in your kitchen might be made of granite as this rock is. Moh s scale is. Peridotite never contains olivine. Which rock is the fine grained equivalent of granite.

Ultramafic rocks are dominated by olivine and or pyroxene. Gabbro is the fine grained equivalent to basalt. Igneous rocks and volcanoes practice exam questions written by timothy h. Its principal minerals are feldspars quartz and mica.

A good example is granite which is a very hard plutonic rock. Heaton professor of earth sciences university of south dakota. The general physical appearance of a rock as observed in reflected light. Because mafic lava is more mobile it is less common than basalt.

Mauna loa in hawaii is situated on a hot spot. It contains more than 68 weight of silica in composition and is granular and coarse grained in texture. Gabbro is a coarse grained mafic igneous rock made with mainly mafic minerals like pyroxene and only minor plagioclase. 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.

The rock that is the fine grained equivalent of granite is.