Integrated stratigraphy of the Lutetian-Priabonian pelagic section at Bottaccione (Gubbio, central Italy): A proposal for defining and positioning the Global Stratotype Section and Point (GSSP) for the base of the Bartonian Stage (Paleogene System, Eocene Series)
Coccioni R., Montanari A., Bosch S., Catanzariti R., Frontalini F., Jovane L., Lermen Kochhann M. V., Pelosi N., Sabatino N., Savian J. F., Sprovieri M.
Stratotype; Bartonian Magnetostratigraphy Calcareous nannofossils Foraminifera
At present, the Global Stratotype Section and Point (GSSP) for the base of the Bartonian remains the only GSSP of the Paleogene System to be defined by the Inter- national Subcommission on Paleogene Stratigraphy (ISPS) and the International Commission on Stratigraphy (ICS). Here, we present the results of an integrated, high-resolution study of calcareous plankton and benthic foraminifera biostratigra- phy and a detailed magneto-, chemo-, and cyclostratigraphic analyses carried out through the upper Lutetian to the upper Priabonian pelagic sediments of the Bot- taccione Gorge section near Gubbio, central Italy, to check its stratigraphic com- pleteness and constrain in time the optimal interval for defining and positioning the GSSP for the base of the Bartonian Stage. The high-resolution and solid integrated stratigraphic framework established at Bottaccione confirmed the completeness of the section, which meets the ICS recommendations for a potential designation as a GSSP for the base of the Bartonian Stage. Thus, the Bottaccione section was com- pared with the parastratotype section of the Bartonian in its type area, Alum Bay, UK. On this basis, two reliable criteria for defining and positioning the Bartonian GSSP at Bottaccione are provided: (1) the base of magnetic polarity chronozone C18r as the primary correlation criterion and (2) the base of the calcareous nannofossil Dictyococcites bisectus, which defines the CNE14/CNE15 zonal boundary as a second- ary correlation criterion.
Source: From the Guajira Desert to the Apennines, and from Mediterranean Microplates to the Mexican Killer Asteroid: Honoring the Career of Walter Alvarez, edited by Koeberl C.; Claeys P.; Montanari A., pp. 311–346. Boulder: Geological Society Of America, Inc., 2022
Publisher: Geological Society Of America, Inc., Boulder, USA
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@inbook{oai:it.cnr:prodotti:465714,
title = {Integrated stratigraphy of the Lutetian-Priabonian pelagic section at Bottaccione (Gubbio, central Italy): A proposal for defining and positioning the Global Stratotype Section and Point (GSSP) for the base of the Bartonian Stage (Paleogene System, Eocene Series)},
author = {Coccioni R. and Montanari A. and Bosch S. and Catanzariti R. and Frontalini F. and Jovane L. and Lermen Kochhann M. V. and Pelosi N. and Sabatino N. and Savian J. F. and Sprovieri M.},
publisher = {Geological Society Of America, Inc., Boulder, USA},
doi = {10.1130/spe557},
booktitle = {From the Guajira Desert to the Apennines, and from Mediterranean Microplates to the Mexican Killer Asteroid: Honoring the Career of Walter Alvarez, edited by Koeberl C.; Claeys P.; Montanari A., pp. 311–346. Boulder: Geological Society Of America, Inc., 2022},
year = {2022}
}