Basalt Diorite And Granite

Basaltic magma in its composition melts the granite bed diorite produces granitic magma.

Basalt diorite and granite.

Diorite is the name used for a group of coarse grained igneous rocks with a composition between that of granite and basalt. Appearance of granite is veined or pebbled and that of diorite is shiny. Diorite results from the partial melting of a mafic rock above a subduction zone. The chemical composition of diorite is intermediate between that of mafic gabbro and felsic granite.

It usually occurs as large intrusions dikes and sills within continental crust. Diorite forms if this type of melt crystallizes below the surface. Properties of rock is another aspect for granite vs diorite. Diorite is usually grey to dark grey in colour but it can also be black or bluish grey and frequently has a greenish cast.

These often form above a convergent plate boundary where an oceanic plate subducts beneath a continental plate. Hardness of granite and diorite is 6 7. Diorite is an intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar biotite hornblende and or pyroxene. 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. Unlike granite which has pink flecks throughout diorite is characterized by its black white and gray mottled look. Diorite is an intrusive igneous rock. Diorite is also a type of igneous rock and is similar in composition to granite and basalt although not identical.

Granite is available in black grey orange pink white colors whereas diorite is available in black brown light to dark grey white colors. This produces a melt that is intermediate in composition between basalt 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. These are usually formed in the arc regions of the upper volcanoes that charm the plates.

These rocks include andesite basalt dacite obsidian pumice rhyolite scoria and tuff. So when the partial melting of an oceanic plate takes place the resulting basaltic magma rises and intrudes on the rocky continental plate. Examples of intrusive igneous rocks are diabase diorite gabbro granite pegmatite and peridotite. 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. Some cool so quickly that they form an amorphous glass. Diorites may be associated with either granite or gabbro intrusions into which they may subtly merge. This produces a melt that is intermediate in composition between basalt and granite.

It is distinguished from gabbro on the basis of the composition of the plagioclase species. The plagioclase in.