پتروگرافی آلی: رویکردی برای شناسایی گروههای ماسرالی زغال‌ سنگهای منطقه قشلاق، البرز شرقی

زمین شناسی اقتصادی

مقاله 5، دوره 8، شماره 1 - شماره پیاپی 14، تیر 1395، صفحه 117-128   

نوع مقاله: علمی- پژوهشی

شناسه دیجیتال (DOI): 10.22067/econg.v8i1.39441

نویسندگان

طاهره ربانی؛ نادر تقی پور^* ؛ رضا اهری پور

دامغان

چکیده

به‌منظور بررسی گروههای ماسرالی زغا‌ل‌سنگ ناحیه زغال‌دار قشلاق، از 11 لایه زغال‌سنگی متعلق به چهار معدن در حال استخراج شامل: معدنهای زمستان یورت، نرگس‌چال، چشمه‌ساران و شرق کلات، نمونه‌برداری انجام شد. بررسی پتروگرافی آلی زغال‌سنگهای قشلاق، بیانگر حضور هر سه گروه ماسرالی است. گروه ویترینیت (vol% 66/2 – 87/2) شامل:ماسرال های کالودترینیت، کالوتلینیت و کورپوژلینیت، گروه اینرتینیت ( vol% 4/9 – 23/2) شامل: ماسرال‌های فوزینیت، سمی فوزینیت، ماکرینیت، اسکرتینیت، فانگینیت، اینرتودترینیت و میکرینیت و گروه لیپتینیت (vol% 0 – 3/5) شامل: ماسرال‌های اسپورنیت، کوتینیت، رزینیت و لیپتودترینیت هستند. گروه ویترینیت دارای بیشترین و گروه لیپتینیت دارای کمترین فراوانی در این زغال‌سنگها هستند. مقدار مواد معدنی این لایه‌های زغال‌سنگی در محدوده بین 5 و vol% 24/9 متغیر است.

کلیدواژه‌ها

ماسرال؛ زغال‌ سنگ؛ قشلاق؛ البرز شرقی

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