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dc.contributor.author
Mohammadi, Ali
dc.contributor.author
Moazzen, Mohssen
dc.contributor.author
Lechmann, Anna
dc.contributor.author
Laurent, Oscar
dc.date.accessioned
2020-10-13T13:58:36Z
dc.date.available
2019-10-25T04:48:49Z
dc.date.available
2019-10-28T08:12:53Z
dc.date.available
2020-10-13T13:58:36Z
dc.date.issued
2020-10-12
dc.identifier.issn
1938-2839
dc.identifier.issn
0020-6814
dc.identifier.other
10.1080/00206814.2019.1675540
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/372731
dc.description.abstract
We present zircon U-Pb crystallization ages combined with bulk rock major and trace element geochemistry and Sr-Nd-Pb and zircon in-situ Hf isotopic compositions of the Amand and Moro granitoid intrusions in northwest Iran. The Amand and Moro plutons include granite and syeno-diorite with LA-ICP-MS U-Pb zircon ages of 367 ± 6.8 Ma and 351 ± 1.3 Ma, respectively, representative of Late Devonian-Early Carboniferous magmatic activity in NW Iran. Geochemical characteristics such as typical enrichments in alkalis, Nb, Zr, Ga and Y, depletion in P and Sr and fractionated REE patterns with high Ga/Al ratios and Eu negative anomalies are consistent with A-type magmatic signatures. The granitoids are classified as A2-type and within-plate granitoids. The bulk rock geochemistry (enrichments in Th, Nb and, high Th/Yb, Zr/Y ratios) along with low variation of 143Nd/144Nd(i) and 87Sr/86Sr(i) ratios and positive zircon εHf(t) support the role of a mantle plume component for the evolution of the Amand and Moro A-type granitoids in an extensional tectonic environment. In fitting with wider regional knowledge, this magmatism occurred during Paleo-Tethys opening in northern Gondwana. © 2019 Informa UK Limited, trading as Taylor & Francis Group.
en_US
dc.language.iso
en
en_US
dc.publisher
Taylor & Francis
en_US
dc.subject
Granitoid
en_US
dc.subject
U-Pb geochronology
en_US
dc.subject
rifting
en_US
dc.subject
Iran
en_US
dc.subject
Palaeo-Tethys
en_US
dc.title
Zircon U-Pb geochronology and geochemistry of Late Devonian–Carboniferous granitoids in NW Iran: implications for the opening of Paleo-Tethys
en_US
dc.type
Journal Article
dc.date.published
2019-10-15
ethz.journal.title
International Geology Review
ethz.journal.volume
62
en_US
ethz.journal.issue
15
en_US
ethz.journal.abbreviated
Int. geol. rev.
ethz.pages.start
1931
en_US
ethz.pages.end
1948
en_US
ethz.size
18 p.
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
London
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2019-10-25T04:48:59Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2020-10-13T13:58:50Z
ethz.rosetta.lastUpdated
2020-10-13T13:58:50Z
ethz.rosetta.versionExported
true
ethz.COinS
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