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Comments on Gigapan: Columnar Stromatolite

  2. A phosphatic (up to 16 wt. %) columnar stromatolite from the ca. 740 Ma Salitre Formation of the Una Group in central Brazil. These stromatolites are similar to those found in post-glacial cap carbonate lithofacies. This sample was provided by Dr. Jay Kaufman of the University of Maryland.

GigaPan Comments ()

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