0
Why are basalt and granite the most common rocks of the crust?
Wiki User
∙ 10y ago
Because they are the product of eutectic melting and density separation of the melts.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What kind of rocks make up continental crust and oceanic crust?
granite and basalt
Are basaltic igneous rocks lower in density than granitic rocks?
Granite is very much less dense than basalt. This is why the continental crust (mostly composed of granite) floats on Oceanic crust (made mostly of basalt). Granite is 70 % silicon. Where basalt is mainly pyroxene.
Is granite and basalt found in volcanoes?
Granite and basalt are both igneous rocks; however, basalt is considered a volcanic rock, and granite is considered a plutonic rock.
What makes up close to 95 percent of the rocks in the earth?
Silicates make up close to 95 percent of the rocks in the Earth's crust
What are three types of igneous rock?
Three types of igneous rocks are pumice, basalt, and granite.
What does granite and basalt have in common?
Basalt and Granite are igneous rocks which are very hard.
What kind of rocks make up continental crust and oceanic crust?
granite and basalt
What is the most common extrusive igneous rock?
Basalt
What layer of the Earth is made up of the rocks basalt and granite?
The crust.
Are basaltic igneous rocks lower in density than granitic rocks?
Granite is very much less dense than basalt. This is why the continental crust (mostly composed of granite) floats on Oceanic crust (made mostly of basalt). Granite is 70 % silicon. Where basalt is mainly pyroxene.
The layer of Earth made up largely of the rocks basalt and granite is the?
The crust.
What composition is earths crust?
oceanic crust is made of basalt while continental crust is made of silica rich rocks like granite.
What is the main type of rock in oceanic crust?
The crust is divided into two types: oceanic crust and continental crust. Oceanic crust, found under the ocean floor, is made of dense rocks such as basalt. It is about 7 kilometers (4 miles) thick. Continental crust, found under land masses, is made of less dense rocks such as granite.
How are Ocean floor rocks are different from continental rocks?
Oceanic crust is composed primarily of the dense volcanic rock basalt. Continental crust is composed primarily of the intrusive igneous rock granite, less dense than basalt.
What 2 types of rock are most common beneath the earths crust?
Metamorphic and igneous rocks are the two most common under the surface of earth.
What rocks form when magma cools inside the crust?
When magma cools inside the crust, intrusive igneous rocks are formed. These rocks will have larger crystal fragments or pores as an effect of their slow rate of cooling. The rocks will cool slower underneath the crust due to pressure and heat, rather than on the crust. An example of an intrusive igneous rock is granite. When rocks cool on or above the crust they are called extrusive igneous rocks. An example of an extrusive igneous rock is basalt. Granite and basalt are good examples of the comparison between intrusive and extrusive igneous rock because of their significant difference in crystal or fragment sizes. While granite has larger crystals, basalt barely has any at all.Michael Sacco
Is granite and basalt found in volcanoes?
Granite and basalt are both igneous rocks; however, basalt is considered a volcanic rock, and granite is considered a plutonic rock.
