GEOLOGY

Detailed explanation-1: -Granite is the signature rock of the planet Earth. The continental crust of our planet has an average chemical composition that is approximately granitic. Granite is the ultimate magmatic silicate rock and among the most prominent constituents of the upper crust. It is mainly composed of quartz, feldspars, and micas.

Detailed explanation-2: -Continental Crust Continental crust is mostly composed of different types of granites. Geologists often refer to the rocks of the continental crust as “sial.” Sial stands for silicate and aluminum, the most abundant minerals in continental crust.

Detailed explanation-3: -Granite is the most widespread of igneous rocks, underlying much of the continental crust. Granite is an intrusive igneous rock. Intrusive rocks form from molten material (magma) that flows and solidifies underground, where magma cools slowly.

Detailed explanation-4: -Granite is an igneous rock composed of mostly two minerals: quartz and feldspar. It is an intrusive rock, meaning that it crystallized from magma that cooled far below the earth’s surface.

Detailed explanation-5: -Oceanic crust is generally composed of dark-colored rocks called basalt and gabbro. It is thinner and denser than continental crust, which is made of light-colored rocks called andesite and granite.