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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- IIT JAM
- Geology (GG)
A plutonic rock consisting only of plagioclase, pyroxene and hornblende as major minerals is known as (a) dunite (c) granite b) lherzolite (d) diorite
A plutonic rock consisting only of plagioclase, pyroxene and hornblende as major minerals is known as (A) dunite (C) granite B) lherzolite (D) diorite
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Saurabh 1 Best Answer
Correct option most probably would be (D). Dunite is a monomineralic rock with major composition comprising of olivine. Lherzolite is a rock classified under Peridotites and it mainly consist of olivine and pyroxenes(opx and cpx). While granite is mainly a felsic rock with quartz as one of the major component. And at last, diorite which have some darker and lighter minerals like plagioclase, hornblende , pyroxenes, etc.
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yes sir D is right
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