Guido Bonarelli and the geological discovery of the Bottaccione Gorge at Gubbio

Walter Alvarez; Ettore Sannipoli

doi:10.1130/2016.2524(01)

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GSA Special Papers

The Stratigraphic Record of Gubbio: Integrated Stratigraphy of the Late Cretaceous–Paleogene Umbria-Marche Pelagic Basin

Author(s)

Geological Society of America

Volume

524

DOI:

https://doi.org/10.1130/SPE524

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ISBN print:

9780813725246

Publication date:

July 01, 2016

Book Chapter

Guido Bonarelli and the geological discovery of the Bottaccione Gorge at Gubbio

Author(s)

Walter Alvarez

Department of Earth and Planetary Sciences, 307 McCone Hall, University of California, Berkeley, California 94720-4767, USA, and Osservatorio Geologico di Coldigioco, Contrada Coldigioco 4, 62021 Apiro (MC), Italy

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;

Ettore Sannipoli

Via Mameli 17, 06024 Gubbio (PG), Italy

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Doi:

https://doi.org/10.1130/2016.2524(01)

Published:

July 01, 2016

The Bottaccione Gorge at Gubbio, Italy, a source of many discoveries in Earth history, was first recognized as an outstanding geological section by Guido Bonarelli (1871–1951). Bonarelli is remembered today mainly for the meter-thick Bonarelli Level, the local manifestation of oceanic anoxic event 2 (OAE 2), which he first recognized and described. Setting aside Bonarelli’s long and distinguished career as a petroleum geologist in Borneo and Argentina, this paper concentrates on his role in the long and difficult effort to date the Scaglia rossa pelagic limestone of the Bottaccione Gorge and the surrounding Umbria-Marche Apennines. Old photographs show a barren...

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The Stratigraphic Record of Gubbio: Integrated Stratigraphy of the Late Cretaceous–Paleogene Umbria-Marche Pelagic Basin

Guido Bonarelli and the geological discovery of the Bottaccione Gorge at Gubbio

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