Civil Engineering - Building Materials - Discussion
Discussion Forum : Building Materials - Section 1 (Q.No. 31)
31.
Gniess is obtained from
Discussion:
71 comments Page 2 of 8.
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).
Ramavtar said:
9 years ago
Gneiss is a widely distributed rock which undergoes various metamorphic processes from already existing either igneous or sedimentary rock. So you have to choose wider one. That is sedimentary metamorphic rock.
Amit Karn said:
1 decade ago
Gneiss is a widely distributed rock which undergo various metamorphic processes from already existing either igneous or sedimentary rock. So you have to choose wider one. That is sedimentary metamorphic rock.
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.
LAVANYA J said:
4 years ago
Slate is the sedimentary rocks, due to the excess action of heat and pressure, the slate changes to gniess. This process is called metamorphism. So, it is sedimentary metamorphic rocks.
(3)
Dipen tilva said:
9 years ago
Gneisses result from the metamorphism of many igneous or sedimentary rocks, and are the most common types of rocks found in Precambrian regions. Gneiss is found in New England.
Khim khatri said:
5 years ago
Granite changes to gneiss so option may be A again it can be obtained from conglomerate which is sedimentary rock so option may be C ie both from igneous and metamorphic.
Avinash said:
3 years ago
Gneiss is a metamorph of conglomerate also which is a sedimentary rock, in that sense, according to options, the best answer is sedimentary metamorphic rocks.
(5)
Nilesh GHIDODE said:
6 years ago
Igneous rock occurring in both sedimentary rock and igneous rock hence its metamorphic form of either called sedimentary metamorphic or igneous metamorphic.
Mohan said:
4 years ago
Gneiss is formed from another metamorphic rock called schist, which itself started out life as a sedimentary rock called shale.
So, option D is correct.
So, option D is correct.
(1)
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