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| Sibuet, Jean-claude; De Cahrpal, Olivier; Montadert, Lucien; Ryan, William B.f.. |
| The morphology of the Western Iberian Continental margin is the result of two main tensional episodes dated Permian-Lias and Upper Jurassic-Lower Cretaceous. Locally, at the level of D.S.D.P. site 398, this second episode is dated Barremian to Uppermost Aptian. A limited oceanic opening probably occurred in Middle Jurassic time between these two tensional episodes. During Lower Cretaceous, there was no relative movement between North America and Iberia. Seafloor spreading began again in Uppermost Aptian and has continued to the present day. The paleodepth for site 398 should have been around two kilometers in Lower Cretaceous after the last movements of subsidence and tilting of blocks associated with the so-called Upper Jurassic-Lower Cretaceous tensional... |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1978 |
URL: http://archimer.ifremer.fr/doc/1978/publication-5235.pdf |
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