| mhorn | Дата: Sunday, 07.07.2013, 22:19 | Сообщение # 1 |
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| Mattioli E., Plancq J., Boussaha M., Duarte L.V., Pittet B. (2013) Calcareous nannofossil biostratigraphy: new data from the Lower Jurassic of the Lusitanian Basin // Comunicações Geológicas, 100, Especial I, 69-76
http://www.lneg.pt/downloa....rr3.pdf
Two sections of the Lusitanian Basin (Portugal), S. Pedro de Moel and Peniche, have been studied in detail for calcareous nannofossil biostratigraphy. This study allowed us to detect thirty-six bioevents, both first and last occurrences, in the exceptionally continuous interval comprised between the Late Sinemurian and the Early Toarcian, representing more than 10 Ma time span. Calcareous nannofossil events were compared to the available ammonite zones. The new biostratigraphic data acquired in the Lusitanian Basin permit a re-evaluation of available nannofossil stratigraphy for the time interval considered and the proposal of a new stratigraphic scheme. Nannofossil biostratigraphy permits the effective dating of Lower Jurassic major
paleoceanographic events
Middle Jurassic - Lower Cretaceous ammonites & aptychi
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