Basaltic Andesitic Granitic
This is because their parent magmas formed from the partial melting of a basaltic oceanic plate.
Basaltic andesitic granitic. D pyroxene a quartz b feldspar. Plagioclase feldspar and quartz. A quartz b feldspar c olivine. 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.
Earth contains three kinds of rocks namely igneous rocks sedimentary rocks and metamorphic rocks basalt and granite are two types of igneous rocks. High silica content in the andesitic lava contributes to causing this high viscosity and low silica content in the basaltic lava means it is of a lower viscosity. Granitic or rhyolitic magmas and andesitic magmas are generated at convergent plate boundaries where the oceanic lithosphere the outer layer of earth composed of the crust and upper mantle is subducted so that its edge is positioned below the edge of the continental plate or. Andesite derives its name from the andes mountains of south america.
Appearance of basalt is dull and soft and that of andesite is dull and soft. Which of the choices below lists the four basic compositional groups of igneous rocks ranging from the highest silica content to the lowest silica content. 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. Andesitic lava is an example of a high viscosity lava whereas balastic lava has a low viscosity so is more runny.
Properties of rock is another aspect for basalt vs andesite. Granitic andesitic basaltic ultramafic. All rocks of igneous origin consist of magma or molten earth that finds its way up to. This magma may have received a granitic contribution by melting granitic rocks as it ascended or mixed with granitic magma.
A basaltic c andesitic b granitic. Basaltic granitic and andesitic are the three basic compositional types of magma molten rock beneath earth s surface. The hardness of basalt is 6 and that of andesite is 7. One major difference between basaltic and granitic magma is their specific mineral contents.
Both lavas are formed at different plate boundaries which is why. Basalt is available in black brown light to dark grey colors whereas andesite is available in bluish grey grey pink yellow colors. Rank the magma types in order of increasing low to high silica content a basaltic b granitic c andesitic. Basaltic magma is a form of what is called mafic magma meaning it is lower.