Chemistry and determination of tectonomagmatic setting in mantle peridotites from iron-copper area of the Heydarabad
The Heydarabad ophiolitic mélange is hosted in the Sistan suture zone, which marks the boundary between the Lut and the Afghan continental blocks and comprises of mantle peridotites and crustal sequence. The studied mantle peridotites are dominated by harzburgite and clinopyroxene-rich harzburgite t...
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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_23097_64a6326abac153248a4666238c88a167.pdf |
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| author | Houshang Pourkaseb Alireza Zarasvandi Mansour Adelpour |
| author_facet | Houshang Pourkaseb Alireza Zarasvandi Mansour Adelpour |
| author_sort | Houshang Pourkaseb |
| collection | DOAJ |
| description | The Heydarabad ophiolitic mélange is hosted in the Sistan suture zone, which marks the boundary between the Lut and the Afghan continental blocks and comprises of mantle peridotites and crustal sequence. The studied mantle peridotites are dominated by harzburgite and clinopyroxene-rich harzburgite that formed in mid-ocean ridge (MOR) setting. These mantle peridotites, due to the effect of hydrothermal solutions, have been altered. Moreover, iron-copper mineralization developed by the influence of hydrothermal fluids moving through the fractures and the faults. The textures and structures of mineralization formed as open space filling, disseminated, vein-veinlet and replacement. Two important stages could be recognized for the mineralization in this area. The first stage includes processes, which caused the development of sulphide mineralization in the mantle peridotites. The second stage is related to oxide fluids, which led to magnetite mineralization.Based on detailed electron microprobe study, olivine, orthopyroxene, clinopyroxene and spinel are the essential rock forming-minerals of the rocks under study. Most of the olivines from the mantle peridotites are serpentinized but some, with forsterite composition, are fresh. The composition of the ortho- and clinopyroxenes is enstatite and diopside respectively and the spinels are classified as Al-rich Cr-spinel type. |
| first_indexed | 2024-03-12T09:42:17Z |
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| institution | Directory Open Access Journal |
| issn | 2228-5210 2322-2182 |
| language | fas |
| last_indexed | 2024-03-12T09:42:17Z |
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| series | پترولوژی |
| spelling | doaj.art-8e3ad824485f427baf58c3d840bbfa522023-09-02T13:07:46ZfasUniversity of Isfahanپترولوژی2228-52102322-21822019-02-01948911010.22108/ijp.2018.111063.108523097Chemistry and determination of tectonomagmatic setting in mantle peridotites from iron-copper area of the Heydarabad Houshang Pourkaseb0Alireza Zarasvandi1Mansour Adelpour2Department of Geology, Faculty of Earth Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran.Department of Geology, Faculty of Earth Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran.Department of Geology, Faculty of Earth Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran.The Heydarabad ophiolitic mélange is hosted in the Sistan suture zone, which marks the boundary between the Lut and the Afghan continental blocks and comprises of mantle peridotites and crustal sequence. The studied mantle peridotites are dominated by harzburgite and clinopyroxene-rich harzburgite that formed in mid-ocean ridge (MOR) setting. These mantle peridotites, due to the effect of hydrothermal solutions, have been altered. Moreover, iron-copper mineralization developed by the influence of hydrothermal fluids moving through the fractures and the faults. The textures and structures of mineralization formed as open space filling, disseminated, vein-veinlet and replacement. Two important stages could be recognized for the mineralization in this area. The first stage includes processes, which caused the development of sulphide mineralization in the mantle peridotites. The second stage is related to oxide fluids, which led to magnetite mineralization.Based on detailed electron microprobe study, olivine, orthopyroxene, clinopyroxene and spinel are the essential rock forming-minerals of the rocks under study. Most of the olivines from the mantle peridotites are serpentinized but some, with forsterite composition, are fresh. The composition of the ortho- and clinopyroxenes is enstatite and diopside respectively and the spinels are classified as Al-rich Cr-spinel type.http://ijp.ui.ac.ir/article_23097_64a6326abac153248a4666238c88a167.pdfheydarabadsistan suture zonemantle peridotitesiron-copper mineralization |
| spellingShingle | Houshang Pourkaseb Alireza Zarasvandi Mansour Adelpour Chemistry and determination of tectonomagmatic setting in mantle peridotites from iron-copper area of the Heydarabad پترولوژی heydarabad sistan suture zone mantle peridotites iron-copper mineralization |
| title | Chemistry and determination of tectonomagmatic setting in mantle peridotites from iron-copper area of the Heydarabad |
| title_full | Chemistry and determination of tectonomagmatic setting in mantle peridotites from iron-copper area of the Heydarabad |
| title_fullStr | Chemistry and determination of tectonomagmatic setting in mantle peridotites from iron-copper area of the Heydarabad |
| title_full_unstemmed | Chemistry and determination of tectonomagmatic setting in mantle peridotites from iron-copper area of the Heydarabad |
| title_short | Chemistry and determination of tectonomagmatic setting in mantle peridotites from iron-copper area of the Heydarabad |
| title_sort | chemistry and determination of tectonomagmatic setting in mantle peridotites from iron copper area of the heydarabad |
| topic | heydarabad sistan suture zone mantle peridotites iron-copper mineralization |
| url | http://ijp.ui.ac.ir/article_23097_64a6326abac153248a4666238c88a167.pdf |
| work_keys_str_mv | AT houshangpourkaseb chemistryanddeterminationoftectonomagmaticsettinginmantleperidotitesfromironcopperareaoftheheydarabad AT alirezazarasvandi chemistryanddeterminationoftectonomagmaticsettinginmantleperidotitesfromironcopperareaoftheheydarabad AT mansouradelpour chemistryanddeterminationoftectonomagmaticsettinginmantleperidotitesfromironcopperareaoftheheydarabad |