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http://dx.doi.org/10.9727/jmsk.2015.28.1.1

Resource Estimation of Ugii Nuur Fe-Mn Occurrence Area, Mongolia  

Lee, Bum Han (Mineral Resources Research Department, Korea Institute of Geoscience and Mineral Resources)
Kim, In Joon (Mineral Resources Research Department, Korea Institute of Geoscience and Mineral Resources)
Heo, Chul-Ho (Mineral Resources Research Department, Korea Institute of Geoscience and Mineral Resources)
Publication Information
Journal of the Mineralogical Society of Korea / v.28, no.1, 2015 , pp. 1-7 More about this Journal
Abstract
Korea Institute of Geoscience and Mineral Resources (KIGAM) and Mineral Resources Authority of Mongolia (MRAM) performed test drilling in the right side of Deposit 2 in Ugii Nuur Fe-Mn occurrence area, Mongolia. It was decided to perform the drilling with 65 degree of drilling angle due to the technological limit of low angle drilling and designed to find ore bodies in cores between 50 m and 70 m. Ore bodies were found in lower depths than expected probably due to the folds in the subsurface in three drilling sites other than drilling position 3. Ore body in drilling position 3 was found in the similar depths with the expected depths. In drilling position 1, high Fe bearing ore body (more than 40%) was found between 47.45 and 50 m and between 56.35 and 57.1 m. The rest of ore body in drilling position 1 and ore bodies in other three sites have low Fe contents with about 10% of Fe. In drilling position 1, maximum and average Mn contents are about 10% and 1%, respectively, and in other three sites, average Mn contents are about 0.2%. Whereas Mn contents are low, Fe and Mn contents show very similar variations with varying depths, suggesting that they were moved and concentrated together in the ore genesis process. Proved resources estimated for the ore bodies confirmed by drilling are Fe 231,661 tonne with 11.82% of the average Fe grade. Possible resources supposing that ore bodies of DP-1 and DP-2 are connected and those of DP-3 and DP-4 are connected are Fe 4,415,296 tonne with 11.82% of the average Fe grade. The possibility of development of this area based on the estimated resources is low because the ore grade is low.
Keywords
Ugii Nuur; Fe-Mn; test drilling; resource estimation;
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Times Cited By KSCI : 1  (Citation Analysis)
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