Establishing the mining deposit groups and the gold exploration network patterns in the Attapeu area, Lao PDR

  • Affiliations:

    1 Polytechnic College, Vientiane, Lao PDR
    2 Hanoi University of Mining and Geology, Hanoi, Vietnam
    3 Intergeo Division, Hanoi, Vietnam

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  • Received: 16th-Oct-2021
  • Revised: 23rd-Jan-2022
  • Accepted: 8th-Feb-2022
  • Online: 28th-Feb-2022
Pages: 1 - 14
Views: 4324
Downloads: 2911
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Abstract:

This paper initially clarified the context of primary gold mineralization in the Attapeu area, Lao People's Democratic Republic. It proposed the priority for the exploration, using the conventional technique combined with the geological mathematic method. The research essentially summarized that the study area had a complex geological and structural setting; the mineralization zones or gold orebodies most likely formed as a lens shape and/or mineralized single vein or vein zone, extending from a few tens of meters to greater than 500 meters long, within a single dipping angle of 45°÷80°; the geometric of orebodies likely illustrated as small to medium size. The mineralization zone significantly extended following the geological setting, indicating consistent to the strongly inconsistent group (Vm = 8.9÷116.8%). Medium- to high-grade gold ores are commonly found in each ore body and identified as a homogeneous to strongly inhomogeneous group (Vc = 58.3÷785%). Regarding the exploration criteria, exploring primary gold mineralization in the Attapeu area fits well with the mineral exploration group III. To estimate the ore reserve in category 112 significantly requires conducting the parallel exploration grid or rectangular grid with the exploration grid interval of 40÷60 meters within the space of the exploration grid line between 20 to 30 meters. The exploration guidelines proposed in this research are efficiently applicable for exploring other primary gold mineralization elsewhere with the geological settings and mineralogical characteristics identically to the primary gold mineralization in the Attapeu area.

How to Cite
Phatthana, H., Nguyen, P., Nguyen, D.Tien and Bui, S.Viet 2022. Establishing the mining deposit groups and the gold exploration network patterns in the Attapeu area, Lao PDR (in Vietnamese). Journal of Mining and Earth Sciences. 63, 1 (Feb, 2022), 1-14. DOI:https://doi.org/10.46326/JMES.2022.63(1).01.
References

Department for Energy and Mining, (2019). Circular codification of reserve, mineral resources, and mining groups of deposits. Department of Mining management, Laos. (in Laos)

Ministry of Natural Resources and Environment, (2017). Circular codification of reserve and solid mineral resources. No. 60/2017/TT-BTNMT, December 08, 2017. (in Vietnamese)

Ministry of Natural Resources and Environment, (2015). Circular providing for exploration and classification of reserves and primary gold mineral resources. No. 03/2015/TT-BTNMT, February 13, 2015. (in Vietnamese)

Bui, V. S. (eds.), (2020). Report on prospecting results of gold placers and accompanying minerals in the Namxuan area, Phuvong district, Attapeu province. Department of Geology and Mineral Resources, Laos. (in Vietnamese)

Department of Geology and Mine of Lao PDR, (2010). Minerals year look 2010-2020, Department of Geology and Mine, Vientiane, Laos

Do, M. A., Nguyen, T.D., Bui, H.B., Khuong, T.H. (2018). Morphological and structural features of coal beds and their influence on the exploration and exploitation in southern wings of Mao Khe Mine, Quang Ninh. Journal of Mining and Earth Sciences, 59(2), 40-48. (in Vietnamese)

Do, Q. B. (eds.), (2014). Report on exploration results of the Vangtat mine - San Xay - Attapeu. Vangtat Mining company, Vieng Chan-Laos PDR, Department of Geology and Mineral Resources, Laos. (in Vietnamese)

Do, Q. B. (eds.), (2015). Report on prospecting and exploration results of mineral deposits in the Vang Tat Kang area, Sanxay district, Attapeu province. Department of Geology and Mineral Resources, Laos. (in Vietnamese)

Houmphavanh, P., Nguyen, P., Nguyen, T. D. (2018a). Geological and mineralogical characteristics of primary gold and its dividing prospect areas in the Xan Xay-Attapeu-Laos PDR. Journal of Mining industry, 5, 64-71. (in Vietnamese)

Houmphavanh, P., Nguyen, P., Nguyen, T. D. (2018b). Potential of the primary gold resources in the Attapeu area, southern Laos PDR. Proceedings of the international conference (ERSD 2018), Ha Noi 07-12-2018.

Intergeo, (2009). Report on investigating and estimation of bauxite and other mineral deposits in southern Laos. Department of Geology and Mineral Resources, Laos. (in Vietnamese)

JICA, (2008). Report on geological mapping at a scale of 1: 200.000 in Đakyoy -Vangtat area, Attapeu province. Department of Geology and Mineral Resources, Laos.

Kazdan, A. B. (1984). Basics of exploratory methodology. Publishing in Nedra. (in Russian)

Luong, Q. K., Nguyen, P., Nguyen, T. D., Bui, H. B., Khuong, T. H. (2018). Methods of geological data proccesing. Transport Publishing House, Ha Noi. (in Vietnamese)

Metcalfe, I. (2016). Paleotethyan evolution of the Indochina Block as deduced from granites in northern Laos. Gondwana Research, 38, 183-196.

Nguyen, P. (2006). Mineral properties modeling and exploration methods. Hanoi University of Mining and Geology. (in Vietnamese)

Prokofev, A. P. (1973). Basics of solid mineral prospecting and exploration geology. Publishing in Nedra. (in Russian)

Tran, V. T., Michel, F., Nguyen, V. V., and Hoang, B. (2020). Neoproterozoic to Early Triassic tectonostratigraphic evolution of Indochina and adjacent areas: A review with new data. Journal of Asian Earth Sciences, 191, 104231.