The potential sources of Bauxite in PirMishi Tash, Semnan province, northern Iran
- سال انتشار: 1402
- محل انتشار: مجله بین المللی معدن و مهندسی زمین، دوره: 57، شماره: 1
- کد COI اختصاصی: JR_IJMGE-57-1_001
- زبان مقاله: انگلیسی
- تعداد مشاهده: 170
نویسندگان
Department of Geology, Faculty of Sciences, Urmia University, Urmia, Iran.
School of Geology, College of Science, University of Tehran, Tehran, Iran.
School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran
چکیده
The Tash bauxite mine is located approximately ۶ km northeast of Tash village and ۴۰ km northwest of Shahroud city in Semnan Province with coordinates of ۳۶° ۳۲′ N to ۳۶° ۳۷′ N and ۵۴° ۴۱′ E to ۵۴° ۴۸′ E. The actions of the orogenic phase of the former Cimmerian as well as the chemical and physical factors have caused the erosion of the basalts in the Shemshak sedimentary basin, which has resulted in the simultaneous deposition of the Shemshak molasses and bauxite in the Tash area. According to some geological evidence and the location of Elias rule, bauxites in the vicinity of Shemshak Formation shales, it is concluded that the clay minerals have played an important role in forming the bauxite deposits in this area. The results showed that the basalts were formed from the alkaline magma and then altered to clay minerals. The remaining immobile elements such as aluminum and residual iron formed the Tash bauxite deposit. The investigation of thin sections designates that the studied ore contains ooidal, plitomorphic, allogeneic pizolite, coloform, and compressive dissolution texture, which indicates the autochthonous origin. Pyrite, chalcopyrite, goethite, and hematite were also recognized. The mineralogical study, performed by the X-Ray diffraction method, led to the identification of minerals of anatase, boehmite, diaspore, chamosite, kaolinite, quartz, and hematite. Analysis of ore samples by the X-Ray fluorescence method and calculation of aggregation coefficient of trace elements and geochemical indicators along with geological evidence revealed the source rock could be from the mafic type.کلیدواژه ها
Mineralization, Bauxite Genesis, Geochemical cross plots, The X-Ray Analysisاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.