نوع مقاله : علمی -پژوهشی
نویسندگان
1 کارشناس ارشد زمینشناسی اقتصادی، دانشکده علوم زمین، دانشگاه دامغان
2 استادیار زمینشناسی اقتصادی، دانشکده علوم زمین، دانشگاه دامغان
3 استادیار زمینشناسی اقتصادی، دانشگاه کشاورزی و منابع طبیعی ساری
چکیده
کلیدواژهها
عنوان مقاله [English]
Damghan fluorite deposit (south of Aresk) is located in the north -west of Damghan. This deposit is limited to the Arsk Mountains and from south it limited to the Atary fault. The mineralized zone is located in member 1 of the mila formation which is mostly dolomite along with interbeds of marl and yellow shal (yellow shal has the same age as middle Cambrian). Fluorite mineralization is mostly white color and a lesser amount with violate color and it is occurred as vein or open space filling. Along with fluorite mineralization, other minerals could be seen as sulfide minerals (like galena, pyrite, chalcopyrite, coveline) and also cerussite minerals, iron hydroxides, calcite and barite .According to the micro thermometry data carried out on fluid inclusions of white and violate fluorite, the temperature domain of homogenization is changing between 100 to 360 ° C and the salinity domain of mineralizing fluid is changing between 0.2 to 20.2 wt% NaClequ.. Evidence shows that fluorite mineralization probably occurred from mixing of hydrothermal fluid with meteoric and basinal fluids in reducing conditions.
کلیدواژهها [English]