Civil Engineering - Building Materials - Discussion
Discussion Forum : Building Materials - Section 1 (Q.No. 31)
31.
Gniess is obtained from
Discussion:
71 comments Page 5 of 8.
Hari said:
8 years ago
Gneiss is a high-grade metamorphic rock, meaning that it has been subjected to higher temperatures and pressures than schist. It is formed by the metamorphosis of granite, or sedimentary rock. Gneiss displays distinct foliation, representing alternating layers composed of different minerals.
Kuldeep singh said:
8 years ago
That is metamorphic rock and formed by granite.
Ram poudel said:
8 years ago
Answer should be A.
PRADEEP CHAUHAN said:
8 years ago
Gneiss is a metamorphic rock which obtained form conversion of granite, therefore, I think metamorphic rock is the correct answer.
Dhaval said:
8 years ago
Granite is not igneous rock. It is polymineralic rock @Vinoth.
Ravi S Murnal said:
8 years ago
Gneiss IS a Metamorphic Rock ------ Original Rock is Granite (Igneous Rock) so answer is Igneous Metamorphic.
Vinoth said:
8 years ago
Gniess is obtained by metamorphism action of granite. The granite is igneous. So the gneiss obtained from igneous rock.
Subhodeep said:
8 years ago
Correct Answer is sedimentary-metamorphic rocks because Gniess is obtained from igneous as well as sedimentary rocks after the metamorphic action.
Vibinkrishna said:
8 years ago
According to me, Option A will be the correct answer.
Suman said:
9 years ago
Gneiss is a high grade metamorphic rock, meaning that it has been subjected to higher temperatures and pressures than schist. It is formed by the metamorphosis of a granite, or sedimentary rock.
Gneiss displays distinct foliation, representing alternating layers composed of different minerals.
Gneiss displays distinct foliation, representing alternating layers composed of different minerals.
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