Petrogenesis of the late Miocene Chenar volcanism in the southeast Urumieh-Dokhtar magmatic belt, Kerman, Iran

The Chenar volcanic cone intruded the southeastern part of the Dehaj-Sarduiyeh volcano-sedimentary belt, in the southeast Urumieh-Dokhtar magmatic arc in Iran. The adakitic rocks, with porphyritic texture, mainly consist of rhyodacites and dacites,commonly comprised of phenocrysts of plagioclase, ho...

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Autores: Salehi Nejard, Hamideh, Shahosinie, Elham|||0000-0003-2206-9861, Nazarinia, Asma|||0000-0002-7604-9543, Lentz, David R.
Formato: artículo
Fecha de publicación:2024
País:España
Recursos:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:289344
Acesso em linha:https://ddd.uab.cat/record/289344
https://dx.doi.org/urn:doi:10.1344/GeologicaActa2024.22.1
Access Level:acceso abierto
Palavra-chave:Urumieh-dokhtar magmatic arc
Dehaj-sarduiyeh volcano-sedimentary belt
Hf isotopes
U-pb dating
Adakite
Iran
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spelling Petrogenesis of the late Miocene Chenar volcanism in the southeast Urumieh-Dokhtar magmatic belt, Kerman, Iranevidence from geochemical, U-Pb geochronologic, and Hf isotopic constraints: Petrogenesis and geochronologic of the Chenar volcanism (Iran)Petrogenesis of the late Miocene Chenar volcanism in the southeast Urumieh-Dokhtar magmatic belt, Kerman, IranSalehi Nejard, HamidehShahosinie, Elham|||0000-0003-2206-9861Nazarinia, Asma|||0000-0002-7604-9543Lentz, David R.Urumieh-dokhtar magmatic arcDehaj-sarduiyeh volcano-sedimentary beltHf isotopesU-pb datingAdakiteIranThe Chenar volcanic cone intruded the southeastern part of the Dehaj-Sarduiyeh volcano-sedimentary belt, in the southeast Urumieh-Dokhtar magmatic arc in Iran. The adakitic rocks, with porphyritic texture, mainly consist of rhyodacites and dacites,commonly comprised of phenocrysts of plagioclase, hornblende and biotite, with rare K-feldspar in a groundmass composed of plagioclase, K-feldspar and quartz. They yielded U-Pb zircon ages of 5.52±0.099Ma, 5.46±0.12Ma, and 6.44±0.12Ma, and radiogenic ɛHf(t) values ranging from +3.1 to +12.7. The whole-rock geochemical analysis of these rocks reveals transitional calc-alkaline to shoshonitic characteristics. The geochemical characteristics of the study rocks, particularly their high Sr/Y (⁓51.6-136.8) at low Y (⁓4.43-16.2ppm) and high La/Yb (⁓28.4-118.4ppm) at low Yb (⁓0.2-1.3ppm), are coherent with a high silica adakitic signature. The whole-rock positive Eu/Eu* anomaly and zircon Ce/Ce* anomaly reflect the effects of an oxidized magmatic signature where the rocks of the study area originated from a mantle source. The high silica adakite geochemical characteristics of the Chenar volcanic cone support formation by partial melting of the modified mantle under the influence of metasomatized subducted oceanic slab in a post-collisional environment. 22024-01-0120242024-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/289344https://dx.doi.org/urn:doi:10.1344/GeologicaActa2024.22.1reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria.https://creativecommons.org/licenses/by-sa/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2893442026-06-06T12:50:31Z
dc.title.none.fl_str_mv Petrogenesis of the late Miocene Chenar volcanism in the southeast Urumieh-Dokhtar magmatic belt, Kerman, Iran
evidence from geochemical, U-Pb geochronologic, and Hf isotopic constraints: Petrogenesis and geochronologic of the Chenar volcanism (Iran)
Petrogenesis of the late Miocene Chenar volcanism in the southeast Urumieh-Dokhtar magmatic belt, Kerman, Iran
title Petrogenesis of the late Miocene Chenar volcanism in the southeast Urumieh-Dokhtar magmatic belt, Kerman, Iran
spellingShingle Petrogenesis of the late Miocene Chenar volcanism in the southeast Urumieh-Dokhtar magmatic belt, Kerman, Iran
Salehi Nejard, Hamideh
Urumieh-dokhtar magmatic arc
Dehaj-sarduiyeh volcano-sedimentary belt
Hf isotopes
U-pb dating
Adakite
Iran
title_short Petrogenesis of the late Miocene Chenar volcanism in the southeast Urumieh-Dokhtar magmatic belt, Kerman, Iran
title_full Petrogenesis of the late Miocene Chenar volcanism in the southeast Urumieh-Dokhtar magmatic belt, Kerman, Iran
title_fullStr Petrogenesis of the late Miocene Chenar volcanism in the southeast Urumieh-Dokhtar magmatic belt, Kerman, Iran
title_full_unstemmed Petrogenesis of the late Miocene Chenar volcanism in the southeast Urumieh-Dokhtar magmatic belt, Kerman, Iran
title_sort Petrogenesis of the late Miocene Chenar volcanism in the southeast Urumieh-Dokhtar magmatic belt, Kerman, Iran
dc.creator.none.fl_str_mv Salehi Nejard, Hamideh
Shahosinie, Elham|||0000-0003-2206-9861
Nazarinia, Asma|||0000-0002-7604-9543
Lentz, David R.
author Salehi Nejard, Hamideh
author_facet Salehi Nejard, Hamideh
Shahosinie, Elham|||0000-0003-2206-9861
Nazarinia, Asma|||0000-0002-7604-9543
Lentz, David R.
author_role author
author2 Shahosinie, Elham|||0000-0003-2206-9861
Nazarinia, Asma|||0000-0002-7604-9543
Lentz, David R.
author2_role author
author
author
dc.subject.none.fl_str_mv Urumieh-dokhtar magmatic arc
Dehaj-sarduiyeh volcano-sedimentary belt
Hf isotopes
U-pb dating
Adakite
Iran
topic Urumieh-dokhtar magmatic arc
Dehaj-sarduiyeh volcano-sedimentary belt
Hf isotopes
U-pb dating
Adakite
Iran
description The Chenar volcanic cone intruded the southeastern part of the Dehaj-Sarduiyeh volcano-sedimentary belt, in the southeast Urumieh-Dokhtar magmatic arc in Iran. The adakitic rocks, with porphyritic texture, mainly consist of rhyodacites and dacites,commonly comprised of phenocrysts of plagioclase, hornblende and biotite, with rare K-feldspar in a groundmass composed of plagioclase, K-feldspar and quartz. They yielded U-Pb zircon ages of 5.52±0.099Ma, 5.46±0.12Ma, and 6.44±0.12Ma, and radiogenic ɛHf(t) values ranging from +3.1 to +12.7. The whole-rock geochemical analysis of these rocks reveals transitional calc-alkaline to shoshonitic characteristics. The geochemical characteristics of the study rocks, particularly their high Sr/Y (⁓51.6-136.8) at low Y (⁓4.43-16.2ppm) and high La/Yb (⁓28.4-118.4ppm) at low Yb (⁓0.2-1.3ppm), are coherent with a high silica adakitic signature. The whole-rock positive Eu/Eu* anomaly and zircon Ce/Ce* anomaly reflect the effects of an oxidized magmatic signature where the rocks of the study area originated from a mantle source. The high silica adakite geochemical characteristics of the Chenar volcanic cone support formation by partial melting of the modified mantle under the influence of metasomatized subducted oceanic slab in a post-collisional environment.
publishDate 2024
dc.date.none.fl_str_mv 2
2024-01-01
2024
2024-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/289344
https://dx.doi.org/urn:doi:10.1344/GeologicaActa2024.22.1
url https://ddd.uab.cat/record/289344
https://dx.doi.org/urn:doi:10.1344/GeologicaActa2024.22.1
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-sa/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-sa/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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