i1553-040X-3-6-511-m02.mov (5.78 MB)

Supplemental material: New directions in Wilson Cycle concepts: Supercontinent and Tectonic Rock Cycles

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journal contribution
posted on 04.05.2020 by Steven J. Whitmeyer, Lynn S. Fichter, Eric J. Pyle
Geosphere, December 2007, v. 3, p. 511-526, doi: 10.1130/GES00091.1. Animation 2 - QuickTime movie of the relative positions of Laurentia (pink), Gondwana (gray), and Baltica (green) from the Neoproterozoic to the Late Paleozoic, leading up to the assembly of Pangaea. Included are significant microcontinental movements—the Laurentia to Gondwana transfer of the Precordillera terrane and the Gondwana to Laurentia transfer of Avalonia. Movements are shown relative to the South Pole (SP). Laurentia and Gondwana movements are largely based on Dalziel's (1991, 1995, 1997) depictions of the "end run" clockwise movement of Laurentia around Gondwana during the Paleozoic. Locations of Baltica are largely based on Roberts (2003). Transfer of the Precordillera microcontinent (pink) from the Ouachita embayment region of southeast Laurentia to the western South America region of Gondwana is based on Thomas and Astini (1996). Transfer of Avalonia (gray) from the north African margin of Gondwana to eastern Laurentia based on Roberts (2003) and Keppie et al. (2003). File size is 5.9 MB.



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