University of Isfahan Petrological Journal 2228-5210 11 1 2020 04 20 Magnetite mineralization properties of Narm iron mine with respect to petrology and geochemistry of its adjacent gabbroic- dioritic rocks (North of Tabas, South Khorasan Province) Magnetite mineralization properties of Narm iron mine with respect to petrology and geochemistry of its adjacent gabbroic- dioritic rocks (North of Tabas, South Khorasan Province) 103 128 24534 10.22108/ijp.2020.118478.1145 FA Mahboobeh Parvaresh Darbandi Department of Geology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran Azadeh Malekzadeh Shafaroudi Department of Geology and Research Center for Ore Deposit of Eastern Iran, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran 0000-0002-7373-561x Amir Morteza Azimzadeh Department of Geology, Faculty of Science, University of Zanjan, Zanjan, Iran Mohammad Hasan Karimpour Department of Geology and Research Center for Ore Deposit of Eastern Iran, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran Journal Article 2019 07 29 The Narm iron mine located in the north of Tabas, the South Khorasan province in the north east of Iran. Magnetite is the main mineral, is associated with actinolite as the most abundant silicate mineral as well as apatite as the micro crystalline localized aggregations in the mineralization zone. The iron ore grade ranges from 50 to 55 wt% and 3% sulfur content. On the base of field observation, geochemical investigation, the rare earth elements pattern and their distribution there are many similarities between the mineralization of Narm mine and some magnetite-apatite iron oxide (IOA) deposits. Lithologically, the area mainly includes limestone-dolomite units of the Rizu formation in which gabbroic-dioritic magma is intruded. The dominant texture of these intrusive rocks is hypidiomorphic granular, dominated by plagioclase, amphibole (hornblende), pyroxene (mostly diopside), apatite as an important accessory mineral and opaque minerals mainly magnetite and pyrite. The rocks under study are alkaline in nature formed in within plate zone. These gabbroic-dioritic rocks were produced as a result of low degree partial melting of mantle wedge with garnet lherzolite composition. Any geochemical evidence indicating of crustal contamination is not observed. . <br />  The Narm iron mine located in the north of Tabas, the South Khorasan province in the north east of Iran. Magnetite is the main mineral, is associated with actinolite as the most abundant silicate mineral as well as apatite as the micro crystalline localized aggregations in the mineralization zone. The iron ore grade ranges from 50 to 55 wt% and 3% sulfur content. On the base of field observation, geochemical investigation, the rare earth elements pattern and their distribution there are many similarities between the mineralization of Narm mine and some magnetite-apatite iron oxide (IOA) deposits. Lithologically, the area mainly includes limestone-dolomite units of the Rizu formation in which gabbroic-dioritic magma is intruded. The dominant texture of these intrusive rocks is hypidiomorphic granular, dominated by plagioclase, amphibole (hornblende), pyroxene (mostly diopside), apatite as an important accessory mineral and opaque minerals mainly magnetite and pyrite. The rocks under study are alkaline in nature formed in within plate zone. These gabbroic-dioritic rocks were produced as a result of low degree partial melting of mantle wedge with garnet lherzolite composition. Any geochemical evidence indicating of crustal contamination is not observed. . <br />  https://ijp.ui.ac.ir/article_24534_80d89e085a8cdd3760ee4aa33636edad.pdf