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Discovery of Llandovery (Silurian) graptolites and probable Devonian corals in the Southalpine Metamorphic Basement of the Eastern Alps (Agordo, NE Italy)

Published online by Cambridge University Press:  07 March 2005

IGINIO DIENI ,
DANILO GIORDANO ,
DAVID K. LOYDELL  and
FRANCESCO P. SASSI
IGINIO DIENI
Affiliation:
Dipartimento di Geologia, Paleontologia e Geofisica, Università, Via Giotto 1, I 35137 Padova, Italy
DANILO GIORDANO
Affiliation:
Istituto Tecnico Industriale Minerario ‘U. Follador’, Via 5 Maggio 16, I 32021 Agordo, Italy
DAVID K. LOYDELL
Affiliation:
School of Earth and Environmental Sciences, University of Portsmouth, Burnaby Road, Portsmouth PO1 3QL, UK
FRANCESCO P. SASSI
Affiliation:
Dipartimento di Mineralogia e Petrologia, Università, Corso Garibaldi 37, I 35137 Padova, Italy
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Abstract

We report the discovery of Aeronian (Middle Llandovery) graptolites, and corals of probable Devonian age, in boudins hosted by greenschists, within the Southalpine Metamorphic Basement. These discoveries provide key constraints to the depositional age range of the protoliths. This remarkable occurrence of almost undeformed graptolites and compound corals in boudins within a metamorphic shear zone indicates very marked local strain partitioning.

Keywords

graptolitescoralsSilurianDevonianEastern Alps
Type
Original Article
Information
Geological Magazine , Volume 142 , Issue 1 , January 2005 , pp. 1 - 5
Copyright
© 2005 Cambridge University Press

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