The pumpellyite-actinolite and contiguous facies in part of the Phyllite-Quartzite Series, central Northern Peloponnesus, Greece |
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| Authors: | E G BALTATZIS C G KATAGAS |
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| Institution: | Department of Geology, National University of Athens, Panepistimioupolis, Ano Ilisia, Athens 15701, Greece; Department of Geology, University of Patras, Patras, Greece |
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| Abstract: | Variations in assemblage and composition of the constituent minerals in basic and intermediate metavolcanics encountered in the Zarouchla Group of the Phyllite-Quartzite Series are consistent with a progressive sequence, corresponding to temperature conditions estimated at 290-380°C (minimum values) under a total pressure greater than 3°5kbar and possibly as high as 5 kbar. In the absence of more critical evidence, the parageneses recorded in the metavolcanic rocks are interpreted as belonging to a prograde facies series from the lawsonite-albitechlorite facies through the pumpellyite-actinolite facies to the greenschist facies. The present distribution of mineral assemblages does not show a simple increase of metamorphic grade in a given direction but is apparently related to the tectonic evolution of the metamorphic sequence. |
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| Keywords: | greenschist facies: lawsonite-albite-chlorite facies Peloponnesus (Greece) Phyllite-Quartzite Series pumpellyite-actinolite facies |
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