The Fine Grained Volcanic Equivalent Of Granite Is Basalt

Summary of basalt vs.

The fine grained volcanic equivalent of granite is basalt.

Is felsic in composition after an explosive volcanic eruption on an island the surrounding sea is full of light gray floating rock. How the magma felt during cooling. Its principal minerals are feldspars quartz and mica. A tholeiitic basalt contains more conspicuous plagioclase and pyroxene crystals.

The tholeiitic and the alkali basalts. 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. Basalts may be broadly classified on a chemical and petrographic basis into two main groups. Basalt is a fine grained.

Very dark green to black fine grained rock composed primarily of pyroxene and calcium rich plagioclase feldspar. Basalt and gabbro are the extrusive and intrusive names for mafic igneous rocks and peridotite is ultramafic with komatiite as the fine grained extrusive equivalent. Learn more about basalt in this article. Fine grained equivalent to granite composed of mostly light colored silicates.

It contains more than 68 weight of silica in composition and is granular and coarse grained in texture. For igneous rocks crystal size is interpreted to imply which of the following. Medium grey fine grained rock typically of volcanic orgin. The rock that is the fine grained equivalent of granite is.

Basalt extrusive igneous volcanic rock that is low in silica content dark in color and comparatively rich in iron and magnesium. The fine grained rock texture that results from crystals too small to be see with the naked eye. Peridotite contains calcium rich plagioclase. The specimen above is about two inches five centimeters across.

The fine grained volcanic equivalent of granite is basalt. Gabbro is the fine grained equivalent to basalt. Basalt one example of an aphanitic rock with mafic composition. Is the intrusive equivalent of andesite looks like grey granite.

It often forms as a frothy crust on the top of a lava flow or as material ejected from a volcanic vent and solidifying. Is the coarse grained equivalent of andesite. Granite the equivalent of its extrusive volcanic rock type rhyolite is a very common type of intrusive igneous rock. The fine grained equivalent of gabbro.

Basalt can form in a few days to months whereas granite plutons can take millions of years to cool and harden. Basalt is more common in oceanic crust while granite is more common in continental crust. Basalt is an igneous volcanic rock that forms commonly in oceanic crust and parts of. Mauna loa in hawaii is situated on a.

The softest mineral on mr.