Compare And Contrast Granitic And Basaltic

Basalt as a mafic rock contains more calcium oxide manganese oxide and iron compounds than granite.

Compare and contrast granitic and basaltic.

Basaltic mafic granitic felsic andesitic intermediate and ultramafic. Basaltic magma contains between 45 and 55 percent silicon dioxide and is high in magnesium iron and calcium while granitic magma contains between 65 and 75 percent silicon dioxide and only small amounts of those minerals. Granitic rocks are intrusive which means they crystallized underground. Among other differences the nature of these rocks reveals that basalt is basic in nature whereas granite is acidic in nature.

Answered by anna d. It is small and this whole thing is the section. Basalt is a mafic rock containing calcium rich plagioclase feldspars and no quartz. Also basaltic rocks are more mafic and granitic.

4 2 compare and contrast basic igneous compositions. Geography tutor 12739 views. Basalt is extrusive phaneritic while granite is intrusive aphantic. Both lavas are formed at different plate boundaries which is why they have different silica contents.

Granite is an intrusive rock and lavas are extrusive rocks. It is mostly made out of quartz mica and feldspar. Of the two basalt is darker and consists of fine grained minerals such as magnesium and iron while granite is lighter and consist of feldspar and quartz. Granite is a felsic rock meaning that it has a high silicon content.

Basically read the 4 2 section. Basaltic rocks are extrusive meaning they crystallized above ground. Basaltic describes a dense dark colored igneous rock formed from magma rich in magnesium and iron. Basalt will be a lot denser which is the main reason why granite is a feature.

Its high iron content gives it magnetic properties and it may show signs of rust when exposed to air. Basalt is mafic while granite is felsic basalt is common on both earth and other solar system bodies such as the moon and mars while granite is only common on earth and rare elsewhere in the solar system basalt can form in a few days to months whereas granite plutons can take millions of years to cool and harden. Poor in silica granitic describes generally light colored silica rich igneous rock that is.