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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.
      
    Based on the micro-texture, select the oldest assemblage from the following.
    2. A.
    A-D
    B.
    E-F
    C.
    B-C
    D.
    A-G

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    Answer : Option B

    Explanation :

    -NA-

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