بررسی نوع کانه‌ز‌ایی، زمین شیمی دگرسانی و ارتباط طلا و عناصر همراه در منطقه هیزه جان (شمال غرب ایران )

نوع مقاله : مقاله پژوهشی

نویسندگان

دانشگاه تبریز

چکیده

منطقه مورد بررسی در شهرستان ورزقان و از توابع استان آذربایجان­ شرقی است. کانه­زایی در منطقه هیزه­جان از نوع طلا و در ارتباط با رگه و رگچه­های سیلیسی و سیلیسی - کربناتی بوده که در داخل سنگ­های آتشفشانی ائوسن با ترکیب غالب آندزیت رخ داده است. بارزترین دگرسانی­های گسترش یافته در این منطقه، شامل دگرسانی­های پروپیلیتی، آرژیلی و سیلیسی هستند. بر اساس بافت­های برشی، شانه­ای و رورشدی کانی­های باطله کوارتز و کربنات در این رگه­ها، تشکیل کانه­های سولفیدی از نوع گالن- اسفالریت- کالکوپیریت- پیریت- تترائدریت، تشکیل کانی­های کائولینیت و مونت موریلونیت در پهنه دگرسانی آرژیلی و تمرکز بیشتر رگه­های کانی­سازی شده در نزدیکی دایک­های ریز دیوریتی، نوع کانه­زایی رخ داده در این منطقه از نوع کانه­زایی طلای فراگرمایی سولفیداسیون حدواسط است و بررسی­های آماری دو متغیره، تشکیل طلا و عناصر همراه فلزات پایه را در فازهای مختلف کانه­زایی تایید می­کند. همچنین در این منطقه نتایج، بررسی­های زمین شیمی دگرسانی با بررسی­های میکروسکوپی و تجزیه کانی­شناسی با پراش پرتوی X همخوانی دارد.    

کلیدواژه‌ها

عنوان مقاله [English]

Type of mineralization, geochemistry of alteretion and relation of gold and associated elements in the Hizeh-jan area (NW Iran)

نویسندگان [English]

  • Bahaaldin Nakhjavani
  • SeyedGhafoor Alavi
University of Tabriz
چکیده [English]

The study area is located in the Varzeghan city and in the province of the East Azerbaijan. Mineralization in the Hizeh –Jan area is ​​gold mineralization type and associated with quartz and quartz - carbonate veins and veinlets, which is occurred in the Eocene volcanic rocks with andesite composition. The most significant alteration in this area, is developing of propylitic, argillic and silicic alterations. Based on the breccia, comb, overgrowth textures of quartz and carbonate gangue minerals of these veins, type of sulphide minerals include pyrite, galena, sphalerite, chalcopyrite, tetrahederite, kaolinite and montmorillonite minerals that formed in argillic alteration and more focus of mineralized veins near the micro-diorite dikes demonstrator of IS epithermal gold mineralization occurred in this area and bivariate statistical analysis confirm the genesis of gold and associated elements in a different phases. In this area, alteration geochemistry studies corresponded with microscopic studies and XRD analysis.

کلیدواژه‌ها [English]

  • Hizeh-Jan
  • Varzeghan
  • propylitic
  • argillic
  • Mineralization
  • alteration
  • Geochemistry

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سابقه مقاله

  • تاریخ دریافت: 04 شهریور 1396
  • تاریخ بازنگری: 19 آذر 1396
  • تاریخ پذیرش: 23 دی 1396

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