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Mt James formation conglomerate of facetted quartzite pebbles in a schist matrix; the Formation is dated at ca. 1800Ma. North is at the top
PhotoID471

Mt James formation conglomerate of facetted quartzite pebbles in a schist matrix; the Formation is dated at ca. 1800Ma. North is at the top
PhotoID471

Photograph: Cees Passchier