What are the two types of igneous rocks? Name and differentiate them with the help of examples.
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Explanation:
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. Intrusive rocks are formed from magma that cools and solidifies within the crust of the planet
examples.
extrusive rocks:Pumice. Basalt. Perlite. Trachyte. Rhyolite. Obsidian. Phonolite.
intrusive rocks:dykes, sills, laccoliths, bysmaliths, phacoliths, lopolith, volcanic necks, batholiths and chonoliths.
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Igneous rocks are of two types based on where the magma solidifies.
- Intrusive
- Extrusive
Intrusive rocks are formed when magma is trapped inside the earth
Extrusive rocks are formed when magma is solidified on the surface.
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