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Konferencja
International Congress on the Jurassic System (7 ; 06-18.09.2006 ; Kraków, Poland]
Języki publikacji
Abstrakty
This work is aimed to improve lithostratigraphy and biostratigraphy, based on calcareous nannofossils, of the deep-marine Lower Toarcian sediments belonging to Tuscan Nappe (Northern Apennines). The sampled lower part of the Calcari e marne a Posidonia (Posidonia Marls) correlates with the Marne del Monte Serrone of the Umbria-Marche Basin, which is characterized by the presence of the Lower Toarcian black shales. The Calcari e marne a Posidonia consists of grey to greenish hemipelagic to pelagic bivalves-bearing marlstones and limestones with interbedded grey to grey dark, sometimes reddish, clayey marlstones and marly claystones. In some localities, in the lower portion of this formation is recognized a thin to medium thick organic-rich interval of black marlstones and marly claystones. The recovered calcareous nannofossil assemblages allow to assigne the basal portion of the Marne a Posidonia to the Lower Toarcian with the thin organic-rich interval comprised between the appearances of the genera Carinolithus and Discorhabdus.
Czasopismo
Rocznik
Tom
Strony
203--204
Opis fizyczny
Twórcy
autor
autor
autor
autor
- Dipartimento Scienze della Terra, Universit�ç degli Studi di Pisa, Via S. Maria, 53, 56100 Pisa, Italy, perilli@dst.unipi.it
Bibliografia
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BSL9-0068-0058