Journal of the Mineralogical Society of Korea (한국광물학회지)

The Mineralogical Society of Korea (한국광물학회)
권호 표지
DOI QR코드

DOI QR Code

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

몽골 우기누르 철-망간 산출지 자원량 평가

  • 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)
  • 이범한 (한국지질자원연구원 광물자원연구본부 광물자원연구실) ;
  • 김인준 (한국지질자원연구원 광물자원연구본부 광물자원연구실) ;
  • 허철호 (한국지질자원연구원 광물자원연구본부 광물자원연구실)
  • Received : 2015.01.29
  • Accepted : 2015.03.25
  • Published : 2015.03.31
Download PDF
⟨ Previous Next ⟩

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.

한국지질자원연구원과 몽골광물자원청은 몽골 우기누르 철-망간 산출지의 제2광상 우측부에서 시험시추를 수행하였다. 기술적 한계의 최저 시추 각도인 $65^{\circ}$의 각도로 시추하고 50-70 m 시추 구간에서 착맥되도록 시추 위치를 설계하였다. 몽골 우기누르 철-망간 산출지에 대한 시험시추 결과 3번 시추 위치를 제외한 나머지 세 공은 지하에서의 습곡에 의해 예상보다 낮은 깊이에서 광체를 착맥하였다. 3번 시추 위치는 비교적 예상에 맞게 착맥되었다. 1번 시추 위치에는 47.45-50 m 구간과 56.35-57.1 m 구간에서 Fe 40% 이상의 고품위 철 광체가 배태되어 있다. 1번 시추 위치의 나머지 광체 구간 및 다른 세 공의 광체에서 Fe는 약 10%로 저품위 철 광체이다. 1번 시추 위치에서 망간은 최대 10%, 평균 1%의 품위를 갖고 나머지 세 공의 광체에서 망간은 평균 0.2%로 품위가 낮지만 철과 망간의 품위가 매우 유사한 변동 양상을 보이고 있어 철과 망간이 함께 이동하고 농집되었음을 유추할 수 있다. 시추 지역의 확정 자원량은 Fe 231,661 톤이고 평균 품위는 Fe 11.82%이다. 시추위치 1과 2의 광체와 3과 4의 광체가 지하에서 연결되어 있다는 가정 하에 계산한 시추 지역의 예상 자원량은 Fe 4,415,296 톤이고 평균 품위는 Fe 11.82%이다. 평가된 자원량은 현재로서는 품위가 낮아 개발 가능성이 낮다.

Keywords

References

  1. Heo, C.-H., Kang, I.-M., Koh, S.-M., Ko, I.S., Kim, E.-J., Kim, I.J., Kim, T.K., Nam, H.T., Ryoo, C.-R., Park, G.S., Park, S.-W., Son, J.-J., Song, Y.H., Yang, S.-J., Oh, H.-J., Yoo, B.C., Yoon, S.-J., Lee, G., Yi, M.-J., Lee, B.H., Lee, J.-H., Lee, H., Chung, S.-K., Chi, S.-J., Jin, K.-M., and Hong, Y.-K. (2012) Potential evaluation and exploration of overseas mineral resources, Korea Institute of Geoscience and Mineral Resources, GP2010-021- 2012(3), 641p (in Korean with English abstract).
  2. Heo, C.-H., Kang, I.-M., Koh, S.-M., Ko, I.S., Kim, I.J., Ryoo, C.-R., Park, G.S., Park, S.-W., Oh, H.-J., Yoo, B.C., Yoon, S.-J., Lee, B.H., Lee, J.-H., Cho, S.W., and Jin, K.-M. (2012) Exploration and resource estimation of overseas mineral resources, Korea Institute of Geoscience and Mineral Resources, GP2013-007-2014(2), 561p (in Korean with English abstract).
  3. Koh, S.-M., Heo, C.-H., Chi, S.-J., Yoo, B.C., Ryoo, C.-R., Lee, G., Lee, B.H., Park, S.-W., Park, G.S., Lee, J.-H., Kim, E.-J., Yang, S.-J., Lee, H., Kim, I.J., Yoo, J.H., Han, J.-G., Yi, M.-J., Son, J.-J., Yeon, Y.K., Oh, H.-J., Yoon, S.-J., Kang, I.-M., Jin, K.-M., Kim, S.-Y., Moon, D.-H., You, B.W., Song, Y.H., Lee, Y.J., and Chung, S.-K. (2011) Potential evaluation and exploration of overseas mineral resources, Korea Institute of Geoscience and Mineral Resources, GP2010-021-2011(2), 753p (in Korean with English abstract).
  4. Kim, S.-Y., Hwang, D.-H., Ryoo, C.-R., and Park, J.-K. (2004) Mineral exploration on Au-Au / non-ferrous mineral belts of Central Mongolia. Korea Institute of Geoscience and Mineral Resources, KR-04(C)-11, 373p (in Korean with English abstract).
  5. Lee, B.H., Park, G.S., Kim, I.J., Lee, G., Heo, C.-H., and Koh, S.-M. (2012) Characteristics of Fe-Mn Mineralization in Ugii Nuur and Tamir Gol, Mongolia. Journal of the Mineralogical Society of Korea, 25, 313-322 (in Korean with English abstract). https://doi.org/10.9727/jmsk.2012.25.4.313
  6. Park, J.K. (2011) A guidebook of mineral resources estimation. Soam Consultant, Daejeon, 111p (in Korean).
  7. Rodionov, S., Obolenskiy, A., Distanov, E., Badarch, G., Dejidmaa, G., Hwang, D.H., Khanchuk, A., Ogasawara, M., Nokleberg, W., Parfenov, L., Prokopiev, A., Seminskiy, Z., Alexander, P.. Smelov, A., Yan, H., Birul'kin, G., Davydov, Y. Fridovskiy, V., Gamyanin, G., Gerel, O., Kostin, A., Letunov, S., Li, X., Nikitin, V., Sudo, S., Sotnikov, V., Spiridonov, A., Stepanov, V., Sun, F., Sun, J., Sun, W., Supletsov, V., Timofeev, V., Tyan, O., Vetluzhskikh, V., Wakita, K., Yakovlev, Y., and Zorina, L. (2003) Preliminary Metallogenic Belt and Mineral Deposit Maps for Northeast Asia, Open-File Report 03-204, USGS, 104p.

Cited by

  1. Characteristics of the Copper Mineralization in Tsogttsetsii Area, Mongolia vol.29, pp.1, 2016, https://doi.org/10.9727/jmsk.2016.29.1.23
  2. 몽골 촉트체치 지역 동 산출지 예비조사결과 vol.50, pp.4, 2015, https://doi.org/10.9719/eeg.2017.50.4.313