Pogallo Line, South Alps, northern Italy: an intermediate crustal level, low-angle normal fault?

K. V. Hodges, D. M. Fountain

Research output: Contribution to journalArticle

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Abstract

The Pogallo Line is a major crustal shear zone in the crystalline S Alps of N Italy which separates middle amphibolite-granulite facies rocks of the Ivrea zone from lower-middle amphibolite facies rocks of the Strona-Ceneri zone. U-Pb, Rb-Sr, and K-Ar whole-rock and mineral ages for samples from this region indicate that the two zones pursued different time-temperature paths after Caledonian peak metamorphism. We suggest that the Pogallo Line may represent a low-angle normal fault that developed at intermediate crustal levels during a Late Triassic-Early Jurassic extension and attained its present subvertical orientation during Alpine deformation.-after Authors

Original languageEnglish (US)
Pages (from-to)151-155
Number of pages5
JournalGeology
Volume12
Issue number3
DOIs
StatePublished - Jan 1 1984
Externally publishedYes

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ASJC Scopus subject areas

  • Geology

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