The main type of rock found in the crusts are silicates. Silicate minerals are the most abundant and most important since they compose over ninty percent of the minerals in the crust. Felsic rocks typically have higher levels of silicates than mafic rocks. Silicates are composed of oxygen and silicon. The most common silicate minerals are quartz, potassium feldspar, plagioclase feldspar, muscovite, amphibole, pyroxene, garnet, olivine, and biotite.
Intrusive and extrusive igneous rocks of varying silicate content; chemical, clastic, and organic sedimentary rocks; and metamorphic rocks from low-grade to high grade.
Earth's crust is composed mainly of basaltic rock (oceanic crust) and granitic rock (continental crust).
Igneous, sedimentary, and metamorphic are the '3' types of rock.
foliated and non folitated
Basalt and granite
Oxygen + Silicon
the crust and the core
usually the youngest rocks are found on the top of the earths crust
There are almost no extrusive rocks on the earths surface because they are all under the earths surface. They are mainly lower than the earths surface.
Sedimentary rocks is the most common rock type. 75% of all rocks on earth are Sedimentary.
The crust.
the earths crust consists of large amt of igneous rocks ,along with smaller amt of sedimentary and metamorphie rocks.
The basic materials of the earths crust are; silicate rocks, primary granite, igneous, metamorphic, and sedimentary rocks.
Basalt and limestone.
usually the youngest rocks are found on the top of the earths crust
There are almost no extrusive rocks on the earths surface because they are all under the earths surface. They are mainly lower than the earths surface.
I found that folding happens
the crust and the core
the earths crust is made out of rocks
Intrusive Rocks are found underneath Earths crust, while Extrusive rocks are found above Earths crust.
iron and magnesium
it is made of rocks
metamorphic rocks are formed in earths crust not on the surface
There are almost no extrusive rocks on the earths surface because they are all under the earths surface. They are mainly lower than the earths surface.