Granite Basalt Gabbro

Gabbro is a coarse grained and usually dark colored igneous rock it is an intrusive rock.

Granite basalt gabbro.

Igneous rocks with similar composition are basalt extrusive equivalent of gabbro and diabase the same rock type could be named dolerite or microgabbro instead. Basalt is an extrusive fine grained igneous rock formed when the molten materials lava r. The main difference between them is the process through which it formed and texture. Diabase is the preferred name in north america while dolerite is.

ə b eɪ s or dolerite or microgabbro is a mafic holocrystalline subvolcanic rock equivalent to volcanic basalt or plutonic gabbro diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine grained to aphanitic chilled margins which may contain tachylite dark mafic glass. Gabbro with large augite phenocrysts embedded in white plagioclase. The key difference between basalt and granite is that basalt is mostly occurring on ocean floors while granite is in the crust of the earth in all continents. Earth contains three kinds of rocks namely igneous rocks sedimentary rocks and metamorphic rocks basalt and granite are two types of igneous rocks.

It means that it formed as magma cooled slowly in the crust. Basalt and gabbro are both mafic igneous rocks having same mineralogy. Diabase ˈ d aɪ. Gabbro ˈ ɡ æ b r oʊ is a phaneritic coarse grained mafic intrusive igneous rock formed from the slow cooling of magnesium rich and iron rich magma into a holocrystalline mass deep beneath the earth s surface.