"In the Malin Head promontory an older foldsystem, with thrusting and folding about N.W.-trending axes, was followed by Caledonoid folding about N.E.-trending axes. The limbs of the older folds, both major and minor, now lie in the sheet-dip of the Caledonoid folds, the dips of the Caledonoid limbs being equivalent to the plunges of the axes of the older folds. . . . By reference to the outcrop-forms in the area described, and with the aid of plasticine models, it is demonstrated that the outcropforms of folded folds are readily recognizable, and that they provide visible evidence of the approximate axial directions and relative ages of the two fold-systems."

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