Rendiconti Online della Società Geologica Italiana - Vol. 4/2008

Sui recenti ritrovamenti di fossili nelle filladi di Agordo: rassegna da parte di un petrografo (Basamento Metamorfico Sudalpino delle Alpi Orientali)

Francesco Paolo Sassi (*)
(*) Dipartimento di Geoscienze, Università degli Studi di Padova, Via Giotto 1, 35121 Padova. E-mail: francesco.sassi@unipd.it


Volume: 4/2008
Pages: 75-80

Abstract

Recently, in the Agordo area, some unquestionable fossils have been described: 1) Latest Cambrian acritarchs, within trivial black, fine grained phyllites (Col di Foglia); 2) Early Silurian graptolites, within boudins along a recrystallised shear zone cutting low-grade metapelites (Ponte Alto); 3) Middle Devonian Rugosa corals, within metalimestone boudins along the mentioned shear zone. These fossil findings are unique in the Southalpine metamorphic basement of the Eastern Alps. Therefore, the rocks containing them deserve a careful petrographic characterization. The aim of this contribution is to outline the specific petrographic features of these fossil-bearing rocks.

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