Ananya kundu Asked a Question
August 19, 2020 2:19 pmpts 30 pts
Why is basalt finer grained than gabbro gabbro formed from quick cooling of magma. 13. (A) (B) basalt formed from quick cooling of magma. (C) basalt has a mafic composition. ((D) gabbro has a mafic composition
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  • Rahul pandey Best Answer
    (B) Basalt formed from quick cooling of magma Both basalt and gabbro are of mafic composition however due to quick cooling of mafic magma basalt forms, and shows fine grained text...
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  • Sajan sarthak sahoo thankyou
    Basalt is finer because when magma gets cooled it forms nucleation site around which a crystal developes but basalt is a volcanic rock so eruption takes place when magma is Highly...
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  • Sajan sarthak sahoo
    So option B will the answer ,C and D are not because basalt having same composition
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