What is it about?
The Paleogene (between ca 65 and 35 Ma) mafic magmatism in the Southern Alps was associated to a tectonic deformation with ENE-WSW extension direction. This strain direction has been obtained by inversion of fault populations data measured across the graben structure where most of the volcanics accumulated.
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Why is it important?
While the are a lot of studies about the petrology and petrography of the Paleogene volcanics of the Southern Alps, studies on the structural setting associated with the rising magmas are rare. This field-based study explains the mechanism of the crustal extension.
Perspectives
Working on this article was a pleasant experience, since the unravelled extensional structures appeared similar to those of the worldwide major rift settings.
Dario Zampieri
Universita degli Studi di Padova
Read the Original
This page is a summary of: Tertiary extension in the southern Trento Platform, Southern Alps, Italy, Tectonics, June 1995, American Geophysical Union (AGU),
DOI: 10.1029/94tc03093.
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