| Autor: |
R. Bibonne, Camille Raulin, S. Leleu, Jean-Loup Rubino, P. Duringer, J.F. Ghienne, Samir Bouaziz |
| Rok vydání: |
2015 |
| Předmět: |
|
| Zdroj: |
Proceedings. |
| ISSN: |
2214-4609 |
| DOI: |
10.3997/2214-4609.201412667 |
| Popis: |
During the opening of the Neotethys Ocean north of the Ghadames basin, an extensional phase created subsidence. It resulted in the deposition of the first syn-rift strata aged Middle to Upper Permian (El Watiah formation) and Lower to Middle Triassic (Bir el Jaja, Ouled Chebbi and Ras Hamia / Kirchaou formations). The study provides details of the stratigraphic and sequential architecture of Triassic siliciclastic series and the upper clastic part of the El Watiah formation. 221 wells and 18 sedimentological outcrop sections (rocks exposed in southern Tunisia) have been correlated across the entire Ghadames basin. An organization in 11 sequences has been highlighted. 28 isochores and paleogeographic maps have been drawn. In terms of tectonostratigraphy, a major thickening of sequences has been confirmed toward the North of the basin, resulting from a very strong and differential subsidence. In addition, low and subtle differential subsidence has been demonstrated in the southern part of the basin. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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