Basaltic Igneous Rocks Are Lower In Density Than Granitic Rocks

And if you know your igneous petrology you will see that the more mafic rich in magnesium and iron a rock is the greater its density. Igneous rock with a mineral composition between that of basaltic and granitic rock. Consequently due to buoyancy the continental crust rides above the oceanic lithosphere and.

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Difference Between Basalt And Granite Difference Between

Igneous Rocks Lesson 12

Types Of Igneous Rocks Igneous Rock Igneous Rock Types

Chapter 2 Earth Materials The Story Of Earth

Types Of Igneous Rocks Igneous Rock Igneous Rock Textures

Basalt Igneous Rock Pictures Definition Uses More Igneous Rock Igneous Basalt Rock

A basalt is about 53 sio2 whereas granite is 73.

Basaltic igneous rocks are lower in density than granitic rocks.

Rich in quartz and potassium feldspar. High in silica content b. The difference between granites and basalts is in silica content and their rates of cooling. Continental crust density 2 7 2 8.

Granite and rhyolite are felsic igneous rocks intermediate igneous rocks have a density. Intrusive slowly cooled inside the crust. Granitic igneous rocks are all of the following except. Lava that cools quickly forms rocks.

High in iron content. Igneous rocks are formed by the crystallisation of a magma. Plutonic rock formed in the earth. Rock density is very sensitive to the minerals that compose a particular rock type.

Light colored igneous rock of lower density than basaltic rock formed from magma rich in silica but poor iron and magnesium. Lower in density than basaltic rocks d. This magma is thick and stiff. Sedimentary rocks and granite which are rich in quartz and feldspar tend to be less dense than volcanic rocks.

They have a higher silica content and a lower iron and magnesium content than the other types of rock. The density of the continental granitic lithosphere is lower than oceanic basaltic lithosphere.