IIT JAM
Anukruti Asked a Question
October 8, 2020 7:59 ampts 30 pts
  • IIT JAM
  • Geology (GG)

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  • Rahul pandey thankyou
    Answer: A and C; Less silica means silica undersaturated rocks. Phonolite (voocanic equivalent of nepheline) syenite have very low silica content and hence considered as silica und...
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  • Sajan sarthak sahoo Best Answer
    Phonolite contains least sillica ..In QAPF diagram phonolite is the only rock from these options going away from silica end or zero silicau can say ... Nephelline syenite is almos...
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