Calcareous plankton biostratigraphy of the Santonian-Campanian boundary interval in the Bottaccione section (Umbria-Marche Basin, central Italy)

The Bottaccione section (Umbria-Marche Basin, central Italy) was analyzed for calcareous nannofossil and planktonic foraminiferal biostratigraphy across the Santonian-Campanian boundary interval to achieve a high-resolution and updated zonation directly calibrated with magnetostratigraphy. Several c...

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Bibliographic Details
Main Authors: F. Miniati, M. R. Petrizzo, F. Falzoni, E. Erba
Other Authors: M.R. Petrizzo
Format: Article in Journal/Newspaper
Language:English
Published: Università degli studi di Milano. Dipartimento di Scienze della Terra A. Desio 2020
Subjects:
Calcareous nannofossil
planktonic foraminifera
biostratigraphy
Santonian-Campanian boundary
Settore GEO/01 - Paleontologia e Paleoecologia
Settore GEO/02 - Geologia Stratigrafica e Sedimentologica
Planktonic foraminifera
Online Access:http://hdl.handle.net/2434/775896
https://doi.org/10.13130/2039-4942/14399
Description
Summary:The Bottaccione section (Umbria-Marche Basin, central Italy) was analyzed for calcareous nannofossil and planktonic foraminiferal biostratigraphy across the Santonian-Campanian boundary interval to achieve a high-resolution and updated zonation directly calibrated with magnetostratigraphy. Several calcareous plankton events were detected, including zonal markers and additional potential biohorizons. The base of magnetochron C33r, proposed for placement of the base of the Campanian, lies between the first occurrence of Aspidolithus parcus parcus and the last occurrence of Dicarinella asymetrica in the Bottaccione section. The literature survey indicates that these events were found in the Santonian-Campanian boundary interval at supraregional scale and, may be used to confidently approximate the base of the Campanian.

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