Petrography and geochemistry of the Padagi dikes (South of Zahedan, Sistan Suture Zone)

Padagi area is located in southern part of Sistan Suture Zone. In this area, the Eocene flysch-like rocks were intruded by Oligocene-Miocene igneous rocks as batholith, dacitic stock and dacitic to andesitic dike. The flysch is predominantly composed of altered phyllite, shale, sandstone and siltsto...

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Main Authors: Mohammad Boomeri, Marayam Rusta, Raheleh Moradi
Format: Article
Language:fas
Published: University of Isfahan 2021-08-01
Series:پترولوژی
Subjects:
Online Access:https://ijp.ui.ac.ir/article_25909_11b66df2372e38596b5051a33abfe10c.pdf
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author Mohammad Boomeri
Marayam Rusta
Raheleh Moradi
author_facet Mohammad Boomeri
Marayam Rusta
Raheleh Moradi
author_sort Mohammad Boomeri
collection DOAJ
description Padagi area is located in southern part of Sistan Suture Zone. In this area, the Eocene flysch-like rocks were intruded by Oligocene-Miocene igneous rocks as batholith, dacitic stock and dacitic to andesitic dike. The flysch is predominantly composed of altered phyllite, shale, sandstone and siltstone. The batholith is mainly an I-type granular granodiorite. The stock is associated with granodiorite porphyry, quartz-diorite porphyry, quartz-monzonite porphyry and andesite. The dikes, trending NE, are last magmatic phase, and porphyry texture. The igneous rocks in Padagi are mainly high K calc-alkaline and metaluminous belonging to continental margin post-collision magmatic arcs. The minor and rare earth elements, normalized to the primitive and the chondrite mantle, respectively, show that LREE and LILE are enriched relative to HREE and HFSE, respectively, a remarkable feature of igneous rocks related to volcanic arc. According to geochemical studies, for the Padagi samples could assume a garnet-bearing enriched asthenospheric and lithospheric sources with a partial melting of less than 5 % as parent magma generated in 80 to 100 km depth.
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spelling doaj.art-e7453a81396e4b9c8d0daf87218bc7652023-08-02T02:10:15ZfasUniversity of Isfahanپترولوژی2228-52102322-21822021-08-01122719410.22108/ijp.2021.123837.118925909Petrography and geochemistry of the Padagi dikes (South of Zahedan, Sistan Suture Zone)Mohammad Boomeri0Marayam Rusta1Raheleh Moradi2Associate Professor, Geology Department, Sciences College, University of Sistan and Baluchestan, IranM.Sc. Student, Geology Department, Sciences College, University of Sistan and Baluchestan, IranPh.D., Geology Department, Sciences College, University of Sistan and Baluchestan, IranPadagi area is located in southern part of Sistan Suture Zone. In this area, the Eocene flysch-like rocks were intruded by Oligocene-Miocene igneous rocks as batholith, dacitic stock and dacitic to andesitic dike. The flysch is predominantly composed of altered phyllite, shale, sandstone and siltstone. The batholith is mainly an I-type granular granodiorite. The stock is associated with granodiorite porphyry, quartz-diorite porphyry, quartz-monzonite porphyry and andesite. The dikes, trending NE, are last magmatic phase, and porphyry texture. The igneous rocks in Padagi are mainly high K calc-alkaline and metaluminous belonging to continental margin post-collision magmatic arcs. The minor and rare earth elements, normalized to the primitive and the chondrite mantle, respectively, show that LREE and LILE are enriched relative to HREE and HFSE, respectively, a remarkable feature of igneous rocks related to volcanic arc. According to geochemical studies, for the Padagi samples could assume a garnet-bearing enriched asthenospheric and lithospheric sources with a partial melting of less than 5 % as parent magma generated in 80 to 100 km depth.https://ijp.ui.ac.ir/article_25909_11b66df2372e38596b5051a33abfe10c.pdfzahedan batholithintermediate dikeshigh-k calc-alkalinepadagisistan suture zone
spellingShingle Mohammad Boomeri
Marayam Rusta
Raheleh Moradi
Petrography and geochemistry of the Padagi dikes (South of Zahedan, Sistan Suture Zone)
پترولوژی
zahedan batholith
intermediate dikes
high-k calc-alkaline
padagi
sistan suture zone
title Petrography and geochemistry of the Padagi dikes (South of Zahedan, Sistan Suture Zone)
title_full Petrography and geochemistry of the Padagi dikes (South of Zahedan, Sistan Suture Zone)
title_fullStr Petrography and geochemistry of the Padagi dikes (South of Zahedan, Sistan Suture Zone)
title_full_unstemmed Petrography and geochemistry of the Padagi dikes (South of Zahedan, Sistan Suture Zone)
title_short Petrography and geochemistry of the Padagi dikes (South of Zahedan, Sistan Suture Zone)
title_sort petrography and geochemistry of the padagi dikes south of zahedan sistan suture zone
topic zahedan batholith
intermediate dikes
high-k calc-alkaline
padagi
sistan suture zone
url https://ijp.ui.ac.ir/article_25909_11b66df2372e38596b5051a33abfe10c.pdf
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