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White mica ⁴⁰Ar/³⁹Ar age spectra and the timing of multiple episodes of high-Pmetamorphic mineral growth in the Cycladic eclogite-blueschist belt, Syros, Aegean Sea, Greece

Lister, G. S.; Forster, M. A.

Description

New geochronology from Syros in the Cycladic eclogite-blueschist belt, Aegean Sea, Greece, shows that ⁴⁰Ar/³⁹Ar geochronology consistently dates microstructural events in metamorphic rocks. We demonstrate that the age spectra depend on microstructure in a predictable and systematic way. Ages can be inferred by applying the method of asymptotes and limits to data from the step-heating experiments. The results are consistent with previously published estimates for the timing of a sequence of...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
URI: http://hdl.handle.net/1885/108660
Source: Journal of Metamorphic Geology
DOI: 10.1111/jmg.12178

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