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Discussion :: GATE Geology and Geophysics

  1. A, B, C, D, E, F and G are minerals in a sample of metamorphic rock. The micro-texture of the assemblage is given below. A, D and G are porphyroblasts, B and C are coronas, E and F are inclusions.
      
    Select the appropriate metamorphic reaction from the following options.
    2. A.
    A + B = C + D
    B.
    A + C = D + G
    C.
    A + D = B + C
    D.
    E + D = C + A

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    Answer : Option C

    Explanation :

    -NA-

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