Which of the following is a correct example of an intrusive igneous rock?
Which of the following is a correct example of an intrusive igneous rock? Correct Answer Granite
The earth’s crust is composed of rocks. A rock is an aggregate of one or more minerals.Important Points
- There are many different kinds of rocks which are grouped under three families on the basis of their mode of formation. They are: -
- Igneous Rocks - Igneous rock is formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust.
- The two main categories of igneous rocks are extrusive and intrusive
- Extrusive rocks are formed on the surface of the Earth from lava, which is magma that has emerged from underground. example-pumice, obsidian, andesite, rhyolite, and basalt.
- Intrusive rocks are formed from magma that cools and solidifies within the crust of the planet. example-Diorite, granite, pegmatite
- The two main categories of igneous rocks are extrusive and intrusive
Additional Information
- Sedimentary Rocks — Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. example-sandstone, limestone, and shale.
- Metamorphic Rocks —Metamorphic rocks arise from the transformation of existing rock to new types of rock, in a process called metamorphism. example- phyllite, schist, gneiss, quartzite and marble.
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Feb 20, 2025