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SOUTH AFRICAN GEOLOGY
Fig. 27. Meiring's Poort, Oudtshoorn; folded Table Mountain sandstone showing how folds often become obliterated downwards
smaller, and the whole rock is waved in little folds like crinkled paper. This is especially noticeable in the slates near the village of Malmesbury. The Scottish Survey calls this crinkling concertina structure, it being extraordinarily well developed in the Highland schists.
