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Dinoflagellate cysts as indicators of marine influences during the Paleogene in Alsace (NE France).
| Rauscher, R., and Schuler, M. | |
| 1988 | |
| Dinoflagellate cysts as indicators of marine influences during the Paleogene in Alsace (NE France). |
Rauscher, R., & Schuler, M. 1988. Dinoflagellate cysts as indicators of marine influences during the Paleogene in Alsace (NE France). Bull. Cent. Rech. Expl.-Prod. Elf-Aquitaine, 12: 405-425 (in French) An inventory of dinocyst levels has been carried out in the Paleogene of Alsace (NE France) in order to contribute to the reconstruction of the Alsatian sedimentary history during this period when a significant evaporitic and organic sedimentation took place. This study is based on numerous boreholes drilled in the south (in the potash salt basin of Mulhouse and surroundings), in the north (in the oilfields of Pechelbronn-Scheibenhard) and between Strasbourg and Colmar. Several kinds of dinoflagellate cysts assemblages are described: diversified ones reveal marine influences whereas other monospecific ones show brackish periods. Once they are set in their stratigraphic (post-Lutetian to Stampian) and local contexts, these assemblages point out the especially complex and changing sedimentary history of this part of the Rhinegraben during the Paleogene.