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13 December, 16:02

Precambrian rocks were primarily which type of rock

Answers (2)
  1. 13 December, 17:25
    Metamorphic rock. Good Luck.
  2. 13 December, 17:46
    Precambrian rocks are mostly covered by rock systems of more recent origin, but where visible they commonly display evidence of having been altered by intense metamorphism. Precambrian rocks often occur in shields, which are large areas of relatively low elevation that form parts of continental masses.
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