UPSC Exam  >  UPSC Questions  >  The molten magma cools down deep inside the e... Start Learning for Free
The molten magma cools down deep inside the earth's crust. Solid rocks so formed are called
  • a)
    Intrusive Sedimentary rocks
  • b)
    Intrusive Metamorphic rocks
  • c)
    Extrusive igneous rocks
  • d)
    Intrusive igneous rocks
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
The molten magma cools down deep inside the earth's crust. Solid r...
When the molten magma cools, it becomes solid. Rocks thus formed are called igneous rocks. They are also called primary rocks. There are two types of igneous rocks: intrusive rocks and extrusive rocks Lava is actually fiery red molten magma coming out from the interior of the earth on its surface. When this molten lava comes on the earth’s surface, it rapidly cools down and becomes solid. Rocks formed in such a way on the crust are called extrusive igneous rocks. They have a very fine grained structure. For example, basalt. The Deccan plateau is made up of basalt rocks. Sometimes the molten magma cools down deep inside the earth’s crust. Solid rocks so formed are called intrusive igneous rocks. Since they cool down slowly they form large grains. Granite is an example of such a rock
Community Answer
The molten magma cools down deep inside the earth's crust. Solid r...
Intrusive Igneous Rocks

Intrusive igneous rocks are formed when molten magma cools down deep inside the earth's crust. The cooling process takes a long time and occurs under high pressure. As the magma cools, it solidifies and forms solid rocks. These rocks are called intrusive igneous rocks.

Features of Intrusive Igneous Rocks:

1. Location: Intrusive igneous rocks are located deep inside the earth's crust.

2. Texture: Intrusive igneous rocks have a coarse-grained texture. This is because the rocks cool down slowly, giving the crystals more time to grow.

3. Mineral Composition: Intrusive igneous rocks contain a variety of minerals. The most common minerals found in intrusive igneous rocks are feldspar, quartz, and mica.

Examples of Intrusive Igneous Rocks:

1. Granite: Granite is a common intrusive igneous rock that is used for construction purposes. It is composed of feldspar, quartz, and mica.

2. Diorite: Diorite is another intrusive igneous rock that is composed of plagioclase feldspar, hornblende, and biotite.

3. Gabbro: Gabbro is a dark-colored intrusive igneous rock that is composed of plagioclase feldspar, pyroxene, and olivine.

Conclusion:

Intrusive igneous rocks are formed when molten magma cools down deep inside the earth's crust. They have a coarse-grained texture and contain a variety of minerals. Granite, diorite, and gabbro are some examples of intrusive igneous rocks.
Explore Courses for UPSC exam

Similar UPSC Doubts

Top Courses for UPSC

The molten magma cools down deep inside the earth's crust. Solid rocks so formed are calleda)Intrusive Sedimentary rocksb)Intrusive Metamorphic rocksc)Extrusive igneous rocksd)Intrusive igneous rocksCorrect answer is option 'D'. Can you explain this answer?
Question Description
The molten magma cools down deep inside the earth's crust. Solid rocks so formed are calleda)Intrusive Sedimentary rocksb)Intrusive Metamorphic rocksc)Extrusive igneous rocksd)Intrusive igneous rocksCorrect answer is option 'D'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about The molten magma cools down deep inside the earth's crust. Solid rocks so formed are calleda)Intrusive Sedimentary rocksb)Intrusive Metamorphic rocksc)Extrusive igneous rocksd)Intrusive igneous rocksCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The molten magma cools down deep inside the earth's crust. Solid rocks so formed are calleda)Intrusive Sedimentary rocksb)Intrusive Metamorphic rocksc)Extrusive igneous rocksd)Intrusive igneous rocksCorrect answer is option 'D'. Can you explain this answer?.
Solutions for The molten magma cools down deep inside the earth's crust. Solid rocks so formed are calleda)Intrusive Sedimentary rocksb)Intrusive Metamorphic rocksc)Extrusive igneous rocksd)Intrusive igneous rocksCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC. Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of The molten magma cools down deep inside the earth's crust. Solid rocks so formed are calleda)Intrusive Sedimentary rocksb)Intrusive Metamorphic rocksc)Extrusive igneous rocksd)Intrusive igneous rocksCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of The molten magma cools down deep inside the earth's crust. Solid rocks so formed are calleda)Intrusive Sedimentary rocksb)Intrusive Metamorphic rocksc)Extrusive igneous rocksd)Intrusive igneous rocksCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for The molten magma cools down deep inside the earth's crust. Solid rocks so formed are calleda)Intrusive Sedimentary rocksb)Intrusive Metamorphic rocksc)Extrusive igneous rocksd)Intrusive igneous rocksCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of The molten magma cools down deep inside the earth's crust. Solid rocks so formed are calleda)Intrusive Sedimentary rocksb)Intrusive Metamorphic rocksc)Extrusive igneous rocksd)Intrusive igneous rocksCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice The molten magma cools down deep inside the earth's crust. Solid rocks so formed are calleda)Intrusive Sedimentary rocksb)Intrusive Metamorphic rocksc)Extrusive igneous rocksd)Intrusive igneous rocksCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice UPSC tests.
Explore Courses for UPSC exam

Top Courses for UPSC

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev