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SHRIMP dating of zircons in eclogite from the Variscan basement in north-eastern Sardinia (Italy)

Palmeri, Rosaria; Fanning, Christopher; Franceschelli, Marcello; Memmi, Isabella; Ricci, Carlo


SHRIMP (Sensitive High-Resolution Ion Microprobe) U-Pb ages of zircons from a single sample of mafic eclogite (Punta de li Tulchi, Sardinia, Italy) are reported. The study under cathodoluminescence (CL) reveals two groups of metamorphic zircons and the SHRIMP analyses allow recognition of three ages: 1) 453 ± 14 Ma; 2) 400 ± 10 Ma, and 3) 327 ± 7 Ma. The age of 453 ± 14 Ma could be that of the magmatic protolith and an age of 327 ± 7 Ma can reasonably be attributed to the main Variscan...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
DOI: 10.1127/0028-3649/2004/2004-0275


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