Variscan relicts in Alpine high-P pelitic rocks from Samos (Greece): evidence from multi-stage garnet and its included minerals

Porphyroblastic garnet schists from northern Samos contain in their matrix the assemblage Ca‐rich garnet + phengite + paragonite ± chloritoid equilibrated at ∼530 °C and ∼19 kbar during early Tertiary metamorphism. These high‐pressure/low‐temperature (HP‐LT) metapelitic rocks also exhibit mineralogi...

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Bibliographic Details
Published in:Journal of metamorphic geology 2007-12, Vol.25 (9), p.1011-1033
Main Authors: FEENSTRA, A., PETRAKAKIS, K., RHEDE, D.
Format: Article
Language:English
Subjects:
Alpine HP-LT metamorphism
Geology
Metamorphic rocks
Mineralogy
monazite EMP dating
multi-stage garnet
Petrology
Samos
Temperature
Variscan amphibolite facies metamorphism
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Summary:Porphyroblastic garnet schists from northern Samos contain in their matrix the assemblage Ca‐rich garnet + phengite + paragonite ± chloritoid equilibrated at ∼530 °C and ∼19 kbar during early Tertiary metamorphism. These high‐pressure/low‐temperature (HP‐LT) metapelitic rocks also exhibit mineralogical and microstructural evidence of an older, higher temperature metamorphism. Large, centimetre‐sized Fe‐rich garnet showing growth zoning developed discontinuous,
ISSN:0263-4929
1525-1314
DOI:10.1111/j.1525-1314.2007.00741.x