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Evolution of the Rheic Ocean : from Avalonian-Cadomian active margin to Alleghenian-Variscan collision
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SYSNO ASEP 0095128 Document Type M - Monograph Chapter R&D Document Type Monograph Chapter Title Crete and the Minoan Terranes: Age constraints from U-Pb dating of detrital zircons Title Kréta a mínojské terány: Omezení výsledky datování U-Pb na detritických zirkonech Author(s) Zulauf, G. (DE)
Romano, S. S. (DE)
Dörr, W. (DE)
Fiala, Jiří (GLU-S) SAI, RIDSource Title Evolution of the Rheic Ocean : from Avalonian-Cadomian active margin to Alleghenian-Variscan collision. - Colorado : Boulder, 2007 / Linnemann U. - ISBN 978-0-8137-2423-2 Pages s. 401-411 Number of pages 11 s. Language eng - English Country US - United States Keywords Crete ; Minoan terranes ; peri-Gondwanan terranes ; U-Pb-TIMS ; Gondwana ; detrital zircons Subject RIV DB - Geology ; Mineralogy CEZ AV0Z30130516 - GLU-S (2005-2011) Annotation U-Pb dating of detrital zircons separated from paragneiss of eastern Crete yielded peaks in 207Pb/206Pb ages at 0.6, 0.8, 1.0, 2.0, and 2.5 Ga with Mesoproterozoic age gap between 1.1 and 1.6 Ga. These data are compatible with U-Pb zircon ages of surrounding crystalline complexes of the Cyclades, the Menderes Massif, Egypt and the Levant. Possible provenances are the Sahara metacraton, the Arabian-Nubian Shield, and the Kibaran belt of central Africa. The age spectra of the studied East-Mediterranean crystalline complexes differ significantly from those of the Cadomian-Avalonian type terranes. They are, therefore, regarded as a separate collection of peri-Gondwanan terranes referred to as Minoan terranes. In late Neoproterozoic to ?Cambrian times, the latter underwent Andean-type orogeny at the northern border of East Gondwana. There is no evidence that the Minoan terranes traveled for a long distances in Phanerozoic times. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Year of Publishing 2008
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