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Keywords from Image Description:
The Quarterly journal of the Geological Society of London . SOKBY MICASCITIST Fig Contorted Rippledrift in Micaschist from Muchuls exhibiting Cleavagefoliation Magnified diameters WJfo AfV ip Mjwrttflfn The micaceous parts possess wellmarked cleavagefoliation the crystals of black mica do not lie in the line