نوع مقاله : علمی - پژوهشی
نویسندگان
1 استادیار گروه مهندسی معدن، دانشکده معدن، عمران و شیمی، دانشگاه صنعتی بیرجند
2 فارغ التحصیل کارشناسی ارشد اکتشاف معدن از دانشگاه صنعتی بیرجند و کارشناس معدن سنگ آهن سنگان
3 عضو هیات علمی گروه مهندسی معدن، دانشکده معدن، عمران و شیمی، دانشگاه صنعتی بیرجند
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
In this study, the assessment and reserve estimation of the IV (Madanjo) deposit as one of the eastern anomalies of Sangan iron mines, has been done using geostatistical methods. The used data in this study include topographic data and 49 boreholes information with a total drilling of 8549 meters. Reserve modeling was performed by SURPAC software and statistical analysis was done using SPSS. The dimensions of the blocks according to the distances of exploration works, in the direction of X and Y are equal to 25 meters and along the axis of Z is equal 10 meters according to the bench height in the western and central anomalies. Also, sub-blocks were added along the mineral boundaries in the model and 2100 blocks were built.
The reserve estimation of IV deposit has been presented based on different values of cut off grades using kriging and inverse distance square methods. The estimated tonnage based on 20% cut off grade with the kriging method is equal to 12985979 tons and in the inverse square method is 12907748 tons.
کلیدواژه‌ها [English]
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