Basalt Diorite And Granite

Diorite is an intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar biotite hornblende and or pyroxene.

Basalt diorite and granite. Diorite is a coarse grained intrusive igneous rock which contains large interlocking and randomly oriented crystals and forms when molten lava does not reach the earth s surface and cools down in the earth s crust. Hardness of granite and diorite is 6 7. Properties of rock is another aspect for granite vs diorite. So when the partial melting of an oceanic plate takes place the resulting basaltic magma rises and intrudes on the rocky continental plate.

Diorite results from the partial melting of a mafic rock above a subduction zone. This produces a melt that is intermediate in composition between basalt and granite. Some cool so quickly that they form an amorphous glass. Unlike granite which has pink flecks throughout diorite is characterized by its black white and gray mottled look.

Basalt forms when lava reaches the earth s surface near an active volcano. These rocks include andesite basalt dacite obsidian pumice rhyolite scoria and tuff. Extrusive igneous rocks erupt onto the surface where they cool quickly to form small crystals. This magma cools and crystallizes before reaching the earth s surface resulting in the formation of diorite deposits.

Granite is available in black grey orange pink white colors whereas diorite is available in black brown light to dark grey white colors. Basaltic magma in its composition melts the granite bed diorite produces granitic magma. It usually occurs as large intrusions dikes and sills within continental crust. Diorite is usually grey to dark grey in colour but it can also be black or bluish grey and frequently has a greenish cast.

Examples of intrusive igneous rocks are diabase diorite gabbro granite pegmatite and peridotite. These are usually formed in the arc regions of the upper volcanoes that charm the plates. The chemical composition of diorite is intermediate between that of mafic gabbro and felsic granite. This produces a melt that is intermediate in composition between basalt and granite.

Diorite is an intrusive igneous rock. Information about production of diorite. Diorite is known for being coarse in texture and is known for its ability to assist with drainage and erosion. These often form above a convergent plate boundary where an oceanic plate subducts beneath a continental plate.

It is distinguished from gabbro on the basis of the composition of the plagioclase species. Appearance of granite is veined or pebbled and that of diorite is shiny. Diorite forms if this type of melt crystallizes below the surface. There the basaltic magma mixes with granitic magmas or melts granitic rock as it ascends through the continental plate.

If granitic magma or rocks are present there the mixing of basaltic and granitic magmas are taking place under the continental crust plate. Diorite is the name used for a group of coarse grained igneous rocks with a composition between that of granite and basalt.