Respuesta :
The upper part of the mantle is composed mostly of peridotite, a rock denser than rocks common in the overlying crust. ... Some of these less dense rocks, such as granite, are common in the continental crust but rare to absent in the oceanic crust. Both the continental and oceanic crust "float" on the mantle.
The granite rocks are much less dense than other types of rocks due to their thickness. The thickness of the rocks and texture impact their density.
- The average composition of the granite is much less than that of the basaltic rocks that are found inside the earth. Due to its relative thick and lesser density.
- Granite has a density of 2.75 g·cm while that of earth's mantle is about 4.5g/cm³. The intensity of temperature and pressure also impact the formation of rocks.
Hence the granite is made of lighter mass.
Learn more about the granite less dense than the other rock in the earth's mantle.
brainly.ph/question/7213950.
