Civil Engineering - Building Materials - Discussion

Discussion Forum : Building Materials - Section 1 (Q.No. 31)
31.
Gniess is obtained from
igneous rocks
metamorphic rocks
sedimentary rocks
sedimentary metamorphic rocks.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
71 comments Page 2 of 8.

PRASENJIT said:   8 years ago
Gneiss is the metamorphic form of Granite.

NIL said:   7 years ago
Gneiss is obtained from Igneous rock Granite which undergoes the process of metamorphosis. So it can written as Gneiss is obtained from Igneous Metamorphic Rock. Here the answer will be A.

Gopika said:   7 years ago
Gniess is a metamorphic rock. And it is obtained from granite, which is igneous plutonic rock. So I think option A gives the correct answer.

Bishu said:   7 years ago
The correct Answer is A.

Aashish said:   7 years ago
According to me, the Right answer is A.

Kavin suriya said:   7 years ago
Gniess is a metamorphic rock and sedimented afterwards.

Santosh Kumar said:   7 years ago
Gneiss and quartz is siliceous rock.

Ajay Raj said:   7 years ago
Gneiss is a metamorphic rock. Gneiss is formed by high temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. Orthogneiss is gneiss derived from igneous rock (such as granite). Paragneiss is gneiss derived from sedimentary rock (such as sandstone).

So, the Answer is: metamorphic.

Farhan malik said:   6 years ago
Gneiss is a common and widely distributed type of metamorphic rock. Gneiss is formed by high temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. Orthogneiss is gneiss derived from igneous rock (such as granite).

Bishnu khadka said:   6 years ago
I think answer should be A. Gneiss is made from Granite.


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