Lower Toarcian organic-rich sediments from the Tuscan Succession (Northern Apennines, Italy): preliminary results

• Autorzy: Perilli N. , Rodrigues R. , Veiga de Oliveira L. , Catanzariti R.
• Języki publikacji: EN

Abstrakty

EN

For the first time is here documented the presence of Lower Toarcian black shales in the lower portion of the Calcari e marne a Posidonia (Posidonia Marls auctt.) belonging to the Tuscan Nappe. It consists of alternations of 30 cm to 5 m thick black laminated marlstone and marly claystone, with TOC values ranging from 0.43% to 2.49%. Based on calcareous nannofossils, the basal portion of the Calcari e marne a Posidonia spans the Lotharingius hauffii to Carinolithus superbus zones, and the organic-rich interval lies within the Carinolithus superbus Zone.

Słowa kluczowe

EN

black shales; Early Toarcian; calcareous nannofossils; Tuscan Nappe; Northern Apennines; Italy

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Volumina Jurassica
• Rocznik: 2009
• Tom: Vol. 7, no. 1
• Strony: 55--65
• Opis fizyczny: Bibliogr. 43 poz.

Twórcy

autor

Perilli N.

autor

Rodrigues R.

autor

Veiga de Oliveira L.

autor

Catanzariti R.

• Dipartimento Scienze della Terra, Universit�ç degli Studi di Pisa, Via S. Maria 53, 56100 Pisa, Italy,

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