Basalt Granite Important Igneous Rocks

Basalt and granite are the two most commonly known igneous rocks.

Basalt granite important igneous rocks. The dominant mineral of the rock is alkali feldspar which occurs as large crystals. It most commonly forms as an extrusive rock such as a lava flow but can also form in small intrusive bodies such as an igneous dike or a thin sill it has a composition similar to gabbro the difference between basalt and gabbro is that basalt is a fine grained rock while. It is a light coloured rock. A dark colored extrusive igneous rock major component of oceanic crust.

Owing to their interlocked crystals igneous rocks boast of a strong and stable structure. Excluding the rocks between my ears i d have to say that basalt and granite have the honor of being the most important rocks in the crust. It is common both on earth and other planetary bodies. Basalt is an igneous volcanic rock that forms commonly in oceanic crust and parts of continental crust.

Basalt is a dark colored fine grained igneous rock composed mainly of plagioclase and pyroxene minerals. Granite and other rocks of the granite family are the most widely distributed of the deeper plutonic igneous rocks forming the major component of the earth s crust. Both are igneous rocks which means that they cooled from a magma the earth gets very hot just below the surface and there is lots of liquid rock. The two best known igneous rock types are basalt and granite which have distinctly different compositions and textures.

Granite is an igneous plutonic rock which is. Basalt and granite are very important rocks on earth because they make up some of the earth s surface. Hard to see minerals fine grained most important rocks in the crust granite and basalt. Molten rock material below the surface is called magma.

Igneous rock 1. It forms from lava flows which extrude onto the surface and cool. Igneous rocks are one of the three main classes of rocks. Basalt extrusive rock and granite intrusive rock are two of the most common igneous rock types on the earth and cover most of the igneous deposits on the planet usually the rocks in deep ocean floors are known to be basaltic in nature while the rocks in the continental mass are granitic in nature.

Basalt and granite actually have quite a bit in common. Igneous rocks from left to right. The others being sedimentary and metamorphic rocks. Igneous rocks are rocks that are formed from melted rocks 1.

The main minerals in igneous rocks are hard primary ones. Gabbro andesite pegmatite basalt pumice porphyry obsidian granite and tuff. It is formed from magma a melt and hardens to become basalt.