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Strongly mylonitised vein-quartzite in the Erabiddy shear zone, with steeply south-dipping foliation and very strong subvertical D2-stretching lineation

Strongly mylonitised vein-quartzite in the Erabiddy shear zone, with steeply south-dipping foliation and very strong subvertical D2-stretching lineation

Photograph: Cees Passchier