RADIAL CRACKS AROUND CHROMITE INCLUSIONS IN OLIVINE FROM A VARISCAN PERIDOTITE SHEAR ZONE IN THE IVREA ZONE, NORTHERN ITALY

Citation
As. Wendt et U. Altenberger, RADIAL CRACKS AROUND CHROMITE INCLUSIONS IN OLIVINE FROM A VARISCAN PERIDOTITE SHEAR ZONE IN THE IVREA ZONE, NORTHERN ITALY, Tectonophysics, 229(1-2), 1994, pp. 133-137
Citations number
17
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
ISSN journal
00401951
Volume
229
Issue
1-2
Year of publication
1994
Pages
133 - 137
Database
ISI
SICI code
0040-1951(1994)229:1-2<133:RCACII>2.0.ZU;2-O
Abstract
Radiating tensional cracks around chromite inclusions in olivine (Fo91 ) have been observed in the protomylonitic rim of a Variscan shear zon e in the Finero peridotite complex in the Ivrea zone of northern Italy . The first assumptions used to develop a thermomechanical model based on the investigation of (e.g.) Wendt et al. are discussed and a fir st application of a chromite-olivine geothermobarometer is shown for t he example of the Finero peridotite.