بررسی‌ های دورسنجی و مغناطیس هوابرد در ذخایر مس پورفیری برای شناسایی مناطق با تمرکز بالای کانه‌ زایی طلا، مطالعه موردی بخش میانی کمربند دهج ساردوئیه کرمان، ایران

زمین شناسی اقتصادی

مقاله 7، دوره 10، شماره 1 - شماره پیاپی 18، 1397، صفحه 237-254  

نوع مقاله: علمی- پژوهشی

شناسه دیجیتال (DOI): 10.22067/econg.v10i1.53510

نویسندگان

مهدیه حسینجانی زاده ؛ مهدی هنرمند

تحصیلات تکمیلی صنعتی و فناوری پیشرفته

چکیده

هدف از این پژوهش بررسی‌های دورسنجی و مغناطیس هوابرد در ذخایر مس پورفیری برای شناسایی واحدهای دگرسانی و مناطق با تمرکز بالای کانه‌زایی طلاست. بدین‌منظور هشت اندیس با تمرکز متفاوت طلا انتخاب و مرز مطالعاتی و کانی‌های مهم دگرسانی در آنها توسط پردازش داده استر مشخص شدند. داده‌های مغناطیسی نیز با فیلترهای مختلف پردازش و بر اساس مرزهای تعیین‌شده برای هر اندیس برش‌داده شدند. در مرحله بعد مناطق بارز‌شده و تغییرات میدان مغناطیس در اطراف هر اندیس، بررسی و با یکدیگر مقایسه شدند. طبق نتایج پردازش تصاویر استر زون فیلیک در منطقه گسترش زیادی دارد و با توجه به اینکه بیشتر ذخایر فقیر از طلا با دگرسانی گسترده فیلیک همراه هستند، این امر ‌پایین‌بودن مقدار طلا در این ذخایر را تأیید می‌کند. نتایج داده مغناطیسی نیز نشان داد که تغییر در شدت میدان مغناطیسی با تغییرات طلا در اندیس‌های مورد بررسی همخوانی دارد.

کلیدواژه‌ها

داده مغناطیس هوایی؛ ذخایر مس پورفیری؛ سنجش از دور؛ طلا؛ کمربند دهج ساردوئیه کرمان

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