The Fine Grained Volcanic Equivalent Of Granite Is Basalt

Fine grained equivalent to granite composed of mostly light colored silicates.

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. 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. 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. The fine grained equivalent of gabbro.

Basalt is an igneous volcanic rock that forms commonly in oceanic crust and parts of. The softest mineral on mr. Very dark green to black fine grained rock composed primarily of pyroxene and calcium rich plagioclase feldspar. It contains more than 68 weight of silica in composition and is granular and coarse grained in texture.

Is felsic in composition after an explosive volcanic eruption on an island the surrounding sea is full of light gray floating rock. Learn more about basalt in this article. Its principal minerals are feldspars quartz and mica. 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 the equivalent of its extrusive volcanic rock type rhyolite is a very common type of intrusive igneous rock. The fine grained rock texture that results from crystals too small to be see with the naked eye. Is the coarse grained equivalent of andesite. Basalts may be broadly classified on a chemical and petrographic basis into two main groups.

Moh s scale is. Medium grey fine grained rock typically of volcanic orgin. Basalt is a fine grained. For igneous rocks crystal size is interpreted to imply which of the following.

Granite is a coarse grained light colored intrusive igneous rock that contains mainly quartz feldspar and mica minerals. Strato volcanoes are common around the margins of the pacific ocean. A tholeiitic basalt contains more conspicuous plagioclase and pyroxene crystals. How the magma felt during cooling.

Basalt extrusive igneous volcanic rock that is low in silica content dark in color and comparatively rich in iron and magnesium. Mauna loa in hawaii is situated on a. Summary of basalt vs. Is the intrusive equivalent of andesite looks like grey granite.

The rock that is the fine grained equivalent of granite is. Peridotite contains calcium rich plagioclase. The specimen above is about two inches five centimeters across. Gabbro is the fine grained equivalent to basalt.

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