Location of the boundary between the metamorphic Southalpine basement and the Paleozoic sequences of the Carnic Alps: illite "crystallinity' and vitrinite reflectance data

R. Sassi, P. Arkai, C. Lantai, C. Venturini

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Abstract

The Southalpine basement of the Eastern Alps consistents of unmetamorphosed Paleozoic sequences in its eastern-most part (Paleocarnic Chain) and greenschist facies metamorphic rocks elsewhere. Many authors tried to localize the boundary between the metamorphic and non-metamorphic domains. Recent studies demonstrated, by means of illite "crystallinity' data, that the locations of this boundary given in the maps are uncorrect; the boundary should occur more eastwards. In order to ascertain the position of this boundary, illite "crystallinity' and vitrinite reflectance data have been used. This boundary turns out be located along the Val Bordaglia Line and has a tectonic character. -from Authors

Original languageEnglish
Pages (from-to)399-412
Number of pages14
JournalSchweizerische Mineralogische und Petrographische Mitteilungen
Volume75
Issue number3
Publication statusPublished - Jan 1 1995

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ASJC Scopus subject areas

  • Geology
  • Geochemistry and Petrology

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