The Study of amphibolites in Bahram Gor area (northwest of Gol-e Gohar mine in Sirjan), with emphasis on mineral paragenesis and whole rock chemical data
The study area is located northwest of Gol-e Gohar mine (Bahram Gur Protected Zone) in Sirjan, the Kerman Province, a part of the Sanandaj-Sirjan zone. The area is mainly dominated by metamorphic rocks with their basic igneous origin and sedimentary including slate, phyllite, schist (garnet schist,...
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University of Isfahan
2019-02-01
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| Series: | پترولوژی |
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| Online Access: | http://ijp.ui.ac.ir/article_23078_be7e1fa8a2364d97fd0255d82fafc216.pdf |
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| author | Seyyed Hesamaddin Moeinzadeh hadiseh rahimisadegh Mohssen Moazzen |
| author_facet | Seyyed Hesamaddin Moeinzadeh hadiseh rahimisadegh Mohssen Moazzen |
| author_sort | Seyyed Hesamaddin Moeinzadeh |
| collection | DOAJ |
| description | The study area is located northwest of Gol-e Gohar mine (Bahram Gur Protected Zone) in Sirjan, the Kerman Province, a part of the Sanandaj-Sirjan zone. The area is mainly dominated by metamorphic rocks with their basic igneous origin and sedimentary including slate, phyllite, schist (garnet schist, amphibole schist, mica schist, kyanite schist), epidote amphibolite, amphibolite, gneiss, quartzite and marble. Among the study rocks, amphibolites with different minerals paragenesis, have been experienced the highest metamorphic grade to amphibolite facies. The basic igneous rocks ranging in composition from tholeiitic to calc-alkaline are the source rocks of the studied amphibolites and the oceanic crust is their protolith. As the discrimination geochemical diagrams display the amphibolites of the study area probably belong to back arc tectonic environments, which are very similar to mid-ocean ridges (MORB). The primary magma of the igneous rocks and the protolith of amphibolites were derived from spinel-peridotite. Furthermore, on the geochemical diagrams which were used for the purpose of this study, the positive Ba and negative Nb anomalies along with low Nb/U ratio show that the magma of the protolith has been subjected to crustal contamination during rising to the surface. All the geochemical data indicate that the magma has emplaced in a supra-subduction environment related to Neotethys Ocean. |
| first_indexed | 2024-03-12T04:31:15Z |
| format | Article |
| id | doaj.art-cee86dcddfed4333b30bfaa05d53c728 |
| institution | Directory Open Access Journal |
| issn | 2228-5210 2322-2182 |
| language | fas |
| last_indexed | 2024-03-12T04:31:15Z |
| publishDate | 2019-02-01 |
| publisher | University of Isfahan |
| record_format | Article |
| series | پترولوژی |
| spelling | doaj.art-cee86dcddfed4333b30bfaa05d53c7282023-09-03T10:06:27ZfasUniversity of Isfahanپترولوژی2228-52102322-21822019-02-0194496610.22108/ijp.2018.106236.105223078The Study of amphibolites in Bahram Gor area (northwest of Gol-e Gohar mine in Sirjan), with emphasis on mineral paragenesis and whole rock chemical dataSeyyed Hesamaddin Moeinzadeh0hadiseh rahimisadegh1Mohssen Moazzen2Associate Professor, shahid bahonar university of kermanPHD student,Department of geology, Shahid bahonar university, Kerman, Iranprofessor,Department of geology, Tabriz university, Tabriz, IranThe study area is located northwest of Gol-e Gohar mine (Bahram Gur Protected Zone) in Sirjan, the Kerman Province, a part of the Sanandaj-Sirjan zone. The area is mainly dominated by metamorphic rocks with their basic igneous origin and sedimentary including slate, phyllite, schist (garnet schist, amphibole schist, mica schist, kyanite schist), epidote amphibolite, amphibolite, gneiss, quartzite and marble. Among the study rocks, amphibolites with different minerals paragenesis, have been experienced the highest metamorphic grade to amphibolite facies. The basic igneous rocks ranging in composition from tholeiitic to calc-alkaline are the source rocks of the studied amphibolites and the oceanic crust is their protolith. As the discrimination geochemical diagrams display the amphibolites of the study area probably belong to back arc tectonic environments, which are very similar to mid-ocean ridges (MORB). The primary magma of the igneous rocks and the protolith of amphibolites were derived from spinel-peridotite. Furthermore, on the geochemical diagrams which were used for the purpose of this study, the positive Ba and negative Nb anomalies along with low Nb/U ratio show that the magma of the protolith has been subjected to crustal contamination during rising to the surface. All the geochemical data indicate that the magma has emplaced in a supra-subduction environment related to Neotethys Ocean.http://ijp.ui.ac.ir/article_23078_be7e1fa8a2364d97fd0255d82fafc216.pdfminerals paragenesisback arcmid ocean ridgescrustal contaminationamphibolite faciessanandaj sirjan zonebahram gor region |
| spellingShingle | Seyyed Hesamaddin Moeinzadeh hadiseh rahimisadegh Mohssen Moazzen The Study of amphibolites in Bahram Gor area (northwest of Gol-e Gohar mine in Sirjan), with emphasis on mineral paragenesis and whole rock chemical data پترولوژی minerals paragenesis back arc mid ocean ridges crustal contamination amphibolite facies sanandaj sirjan zone bahram gor region |
| title | The Study of amphibolites in Bahram Gor area (northwest of Gol-e Gohar mine in Sirjan), with emphasis on mineral paragenesis and whole rock chemical data |
| title_full | The Study of amphibolites in Bahram Gor area (northwest of Gol-e Gohar mine in Sirjan), with emphasis on mineral paragenesis and whole rock chemical data |
| title_fullStr | The Study of amphibolites in Bahram Gor area (northwest of Gol-e Gohar mine in Sirjan), with emphasis on mineral paragenesis and whole rock chemical data |
| title_full_unstemmed | The Study of amphibolites in Bahram Gor area (northwest of Gol-e Gohar mine in Sirjan), with emphasis on mineral paragenesis and whole rock chemical data |
| title_short | The Study of amphibolites in Bahram Gor area (northwest of Gol-e Gohar mine in Sirjan), with emphasis on mineral paragenesis and whole rock chemical data |
| title_sort | study of amphibolites in bahram gor area northwest of gol e gohar mine in sirjan with emphasis on mineral paragenesis and whole rock chemical data |
| topic | minerals paragenesis back arc mid ocean ridges crustal contamination amphibolite facies sanandaj sirjan zone bahram gor region |
| url | http://ijp.ui.ac.ir/article_23078_be7e1fa8a2364d97fd0255d82fafc216.pdf |
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