What Is The Chemical Composition Of Granite And Basalt
Basalt is an igneous volcanic rock that forms commonly in oceanic crust and parts of.
What is the chemical composition of granite and basalt. Volcanic rock of equivalent chemical composition and mineralogy is called rhyolite. The chemical composition of granite is typically 70 77 silica 11 13 alumina 3 5 potassium oxide 3 5 soda 1 lime 2 3 total iron and less than 1 magnesia and titania. Basalt is more common in oceanic crust while granite is more common in continental crust. Summary of basalt vs.
Earth contains three kinds of rocks namely igneous rocks sedimentary rocks and metamorphic rocks basalt and granite are two types of igneous rocks. A granite containing both muscovite and biotite micas is called a binary or two mica granite. The chemical composition as well as the formation of granite inside the earth s surface produces an incredible material that is valued for its looks and physical properties. It is mostly made out of quartz mica and feldspar.
It has even started replacing marble because of its more durable qualities and resistance to weather and acid rain. Though a very common rock granite is far from ordinary. Granites are the most abundant plutonic rocks of mountain belts and continental. Basalt can form in a few days to months whereas granite plutons can take millions of years to cool and harden.
Basalt as a mafic rock contains more calcium oxide manganese oxide and iron compounds than granite. 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. A worldwide average of the chemical composition of granite by weight percent based on 2485 analyses. All rocks of igneous origin consist of magma or molten earth that finds its way up to.