Compositional characteristics and geodynamic significance of late M iocene volcanic rocks associated with the C hah Z ard epithermal gold–silver deposit, southwest Y azd, I ran

Whole‐rock geochemical and S r– N d isotopic data are presented for late M iocene volcanic rocks associated with the C hah Z ard epithermal A u– A g deposit in the U rumieh‐ D okhtar M agmatic A rc ( UDMA ), I ran, to investigate the magma source, petrogenesis and the geodynamic evolution of the stu...

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Bibliographic Details
Published in:The island arc 2018-01, Vol.27 (1)
Main Authors: Kouhestani, Hossein, Ghaderi, Majid, Emami, Mohammad Hashem, Meffre, Sebastien, Kamenetsky, Vadim, McPhie, Jocelyn, Zaw, Khin, Nasiri Bezenjani, Rasoul
Format: Article
Language:English
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Summary:Whole‐rock geochemical and S r– N d isotopic data are presented for late M iocene volcanic rocks associated with the C hah Z ard epithermal A u– A g deposit in the U rumieh‐ D okhtar M agmatic A rc ( UDMA ), I ran, to investigate the magma source, petrogenesis and the geodynamic evolution of the study area. The C hah Z ard andesitic to rhyolitic volcanic rocks are characterized by significant L arge I on L ithophile E lement ( LILE ) and L ight R are E arth E lement ( LREE ) enrichment coupled with H igh F ield S trength E lement ( HFSE ) depletion. Our geochemical data indicate an adakitic‐like signature for the volcanic rocks (e.g. SiO 2  > 62 wt%, Al 2 O 3  > 15 wt%, MgO   70, L a/ Y b > 35, Y b 
ISSN:1038-4871
1440-1738
DOI:10.1111/iar.12223