11. During the Devonian Period the thickened welt of crust formed by the Caledonian orogeny began to collapse. 12. From the late Neoproterozoic Era to Carboniferous Period, Europe underwent the Caledonian Orogeny and Variscan Orogeny. 13. The resulting Caledonian Orogeny produced an Alpine-style mountain range in much of north and west Britain. 14. The Caledonian ( Iapetus ) plate cycle saw the formation of the Iapetus suture during the Caledonian orogeny . 15. The fault occurred in the Caledonian orogeny , during a late stage of this period of mountain building. 16. The Caledonian orogeny was one of several orogenies that would eventually form the supercontinent Pangaea in the Late Paleozoic era. 17. This part of Scotland largely comprises ancient rocks from the Cambrian and Precambrian, which were uplifted during the later Caledonian Orogeny . 18. The Rhenohercynian basin, a back-arc basin, formed at the southern margin of Euramerica just after the Caledonian orogeny . 19. They collided in the Caledonian orogeny and formed the Caledonide mountains of North America, Greenland, the British Isles and Norway. 20. They were formed during the Caledonian orogeny of the Silurian period and then rejuvenated in the Hercynian orogeny of the Upper Carboniferous period.
