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Zircons from Syros, Cyclades, Greece--Recrystallization and Mobilization of Zircon During High-Pressure Metamorphism |
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| Authors: | TOMASCHEK FRANK; KENNEDY ALLEN K; VILLA IGOR M; LAGOS MARKUS; BALLHAUS CHRIS |
| Institution: | 1 INSTITUT FÜR MINERALOGIE, WESTFÄLISCHE WILHELMS-UNIVERSITÄT MÜNSTER, CORRENSSTRAßE 24, D-48149 MÜNSTER, GERMANY 2 CEMS, CURTIN UNIVERSITY OF TECHNOLOGY, PERTH 6845, W.A., AUSTRALIA 3 INSTITUT FÜR GEOLOGIE, UNIVERSITÄT BERN, ERLACHSTRASSE 9A, CH-3012 BERN, SWITZERLAND |
| Abstract: | Zircons were studied from high-pressure/low-temperature metamorphosedmeta-igneous lithologies from Syros. These rocks carry severalzircon generations related to each other by dissolution–reprecipitationprocesses. One generation is pristine zircon that shows growthzoning, relatively elevated contents of trivalent cations andhigh Th/U ratios. The other end-member is a skeletal zircongeneration with negligible trivalent cation contents and lowTh/U ratios ( |
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