Cambrian Quarzite Mylonites, Stac of Glencoul

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Looking ~N on the Stac of Glencoul, showing mylonitised Cambrian Pipe Rock Quartzites (PRQM).  The Moine Thrust Plane is a few metres above this outcrop. Further below the Moine Thrust and this outcrop, sheared pipes can be seen normal to bedding, from which shear strains can be estimated.

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