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Stratigraphic implications of palynological studies on Berriasian to Albian deposits from western and southern Portugal
| Berthou, P.Y. and Leereveld, H. | |
| 1990 | |
| Review of Palaeobotany and Palynology vol.66 pp.313-344 figs.11 pl.6 tbls.7 | |
| Stratigraphic implications of palynological studies on Berriasian to Albian deposits from western and southern Portugal |
Berthou, P.Y. and Leereveld, H., 1990; Stratigraphic implications of palynological studies on Berriasian to Albian deposits from western and southern Portugal. Review of Palaeobotany and Palynology vol.66 pp.313-344 figs.11 pl.6 tbls.7 Abstract: One section in the Algarve Basin (southern portugal) and several sections in the Western Portugese basin (Lisbon region) have been investigated palynologically with emphasis on the use of dinoflagellate cysts in stratigraphy. As a result, the straigraphy of both basins can be defined accurately. In the Western Portugese basin the existence of Jurassic and Late Valanginian-Early Hoauterivian strata could not be established from dinoflagellate cyst associations. The existence of a hiatus comprising at least the Upper Barremian was confirmed but a continuous Late Aptian-Early Albian sequence in the basin could not be unambiguously identified. In the Algarve Basin the Upper Aptian is well-developed.