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Stage II: Growth of the Iapetus Ocean (224 words) |
 | The ocean included some fragments of continental material (stop 13) similar to Madagascar in the Indian Ocean. |
| Near the edges of the ocean, rivers eroding the continental interiors deposited their sediments along the continental margins. |
| On a distant side of the ocean, the microcontinent Avalonia was located far from the tropics and accumulated its own continental margin deposits (stop 29). |
| General Programme - IGCP Project 497 (899 words) |
| The evolution of the Appalachian-Caledonide Orogen is commonly described in terms of the Iapetus Ocean whose opening produced the rifted margin of eastern Laurentia and whose closure resulted in the collision of this margin with Baltica and a variety of peri-Gondwanan terranes. |
| Closure of the Rheic Ocean produced the vast Ouachita-Alleghanian-Variscan Orogen and was one of the principal events in the Late Palaeozoic assembly of the supercontinent Pangaea. |
| The Rheic Ocean is generally held to have opened between Gondwana and a number of terranes that rifted from the Amazonian-West African margin of Gondwana. |
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