Continental accretion of the Iran Block to Eurasia as seen from Late Paleozoic to Early Cretaceous subsidence curves
| Autor: | Luc-Emmanuel Ricou, Abdollah Saidi, Marie-Françoise Brunet |
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| Rok vydání: | 1997 |
| Předmět: | |
| Zdroj: | Geodinamica Acta. 10:189-208 |
| ISSN: | 1778-3593 0985-3111 |
| DOI: | 10.1080/09853111.1997.11105302 |
| Popis: | Subsidence analysis is used here to get a better understanding of the Eo-Cimmerian continental accretion to Eurasia of a block (the Iran Block) of Gondwanian origin. The drift of the block from Gondwana to Eurasia is classically considered as a late Triassic event but the lack of unquestionable age evidence leads to investigate the whole Permian to Jurassic history. Indeed, the subsequent Alpine deformation along the proposed suture that should mark the Eo-Cimmerian collision forbids to characterize the collisional event without ambiguity. Moreover, the Iran block is presently represented by different continental slivers that are disconnected from each other, being in places separated by Cretaceous ophiolites, and it makes unclear if one or several blocks should be taken into account. Subsidence analysis is introduced to solve the problem, in the hope that the sedimentary history in any part of the slivers has registered important crustal events such as breakup and collision and that the few well-... |
| Databáze: | OpenAIRE |
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