The Fine Grained Volcanic Equivalent Of Granite Is Basalt

Basalt can form in a few days to months whereas granite plutons can take millions of years to cool and harden.

The fine grained volcanic equivalent of granite is basalt.

The softest mineral on mr. It often forms as a frothy crust on the top of a lava flow or as material ejected from a volcanic vent and solidifying. Granite is a coarse grained light colored intrusive igneous rock that contains mainly quartz feldspar and mica minerals. Mauna loa in hawaii is situated on a.

Learn more about basalt in this article. A tholeiitic basalt contains more conspicuous plagioclase and pyroxene crystals. Fine grained equivalent to granite composed of mostly light colored silicates. The fine grained rock texture that results from crystals too small to be see with the naked eye.

How the magma felt during cooling. The specimen above is about two inches five centimeters across. Basalt is an igneous volcanic rock that forms commonly in oceanic crust and parts of. Basalt one example of an aphanitic rock with mafic composition.

The rock that is the fine grained equivalent of granite is. Summary of basalt vs. Gabbro is the fine grained equivalent to basalt. Basalt extrusive igneous volcanic rock that is low in silica content dark in color and comparatively rich in iron and magnesium.

Its principal minerals are feldspars quartz and mica. Is the intrusive equivalent of andesite looks like grey granite. Moh s scale is. Medium grey fine grained rock typically of volcanic orgin.

The tholeiitic and the alkali basalts. Peridotite contains calcium rich plagioclase. Is felsic in composition after an explosive volcanic eruption on an island the surrounding sea is full of light gray floating rock. The fine grained equivalent of gabbro.

Is the coarse grained equivalent of andesite. The fine grained volcanic equivalent of granite is basalt. Very dark green to black fine grained rock composed primarily of pyroxene and calcium rich plagioclase feldspar. Strato volcanoes are common around the margins of the pacific ocean.

Basalts may be broadly classified on a chemical and petrographic basis into two main groups. Komatiite is a rare rock because volcanic material that comes directly from the mantle is not common although some examples can be found in ancient archean rocks 2. It contains more than 68 weight of silica in composition and is granular and coarse grained in texture. Granite the equivalent of its extrusive volcanic rock type rhyolite is a very common type of intrusive igneous rock.

Basalt is more common in oceanic crust while granite is more common in continental crust.