Journal article

An integrated zircon geochronological and geochemical investigation into the Miocene plutonic evolution of the Cyclades, Aegean Sea, Greece: part 2-geochemistry

Robert Bolhar, Uwe Ring, Anthony IS Kemp, Martin J Whitehouse, Steve D Weaver, Jon D Woodhead, I Tonguc Uysal, Rose Turnbull



Zircons from 14 compositionally variable granitic rocks were examined in detail using CL image-guided micro-analysis to unravel the complex magmatic history above the southward retreating Hellenic subduction zone system in the Aegean Sea. Previously published U-Pb ages document an episodic crystallisation history from 17 to 11 Ma, with peraluminous (S-type) granitic rocks systematically older than closely associated metaluminous (I-type) granitic rocks. Zircon O- and Hf isotopic data, combined with trace element compositions, are highly variable within and between individual samples, indicative of open-system behaviour involving mantle-derived melts and evolved supracrustal sources. Pronounc..

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Awarded by Brian Mason technical trust

Awarded by Australian Research Council

Funding Acknowledgements

RB acknowledges financial support through a postdoctoral fellowship at the University of Canterbury (2005-2006). UR acknowledges funding through grant E5345 of the Brian Mason technical trust. TK acknowledges Australian Research Council grants DP0773029 and FT100100059. The NordSIMS facility is operated under an agreement between the joint Nordic research councils (NOS-N), the Geological Survey of Finland and the Swedish Museum of Natural History; this is Nordsim publication # 319. Two anonymous reviewers provided constructive criticism. Chris Ballhaus is thanked for his editorial input.