Luong Quang Khang, Khuong The Hung, Nguyen Phi Hung, Dang Minh Ton. Research identify the group for lead – zinc ore type to prepare exploration in ban lim area, caobang province, Vietnam

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Parent Category: Geo-Technical Mechanics, 2020
Category: Geo-Technical Mechanics, 2020, № 153

Geoteh. meh. 2020, 153, 171-188

https://doi.org/10.1051/e3sconf/202016800011

 

RESEARCH IDENTIFY THE GROUP FOR LEAD – ZINC ORE TYPE TO PREPARE EXPLORATION IN BAN LIM AREA, CAOBANG PROVINCE, VIETNAM

1Luong Quang Khang, 1Khuong The Hung, 1Nguyen Phi Hung, 2Dang Minh Ton

1Hanoi University of Mining and Geology of Vietnam, 2Tuyen Quang Department of Natural Resouses and Invronment

Language: English

Abstract. Ban Lim area, Caobang province has proposed high potential of lead-zinc resources, which have occurred in different geological formations. In this paper, based on the collecting, synthetics and processing geological data, especially applied mathematical methods to recognize studied objects of exploration process and quantitative description. The results show that the lead-zinc orebodies in Ban Lim area are mainly occurred in lens-shaped and distributed in layered surfaces of dolomitized limestone of Coc Xo formation. The average lead-zinc content of the orebodies is in a range from 3.27% to 8.33%, its coefficient of variation (Vc) is in a range from 13.71% (evenly) to 137.92% (very unevenly). On the whole, the lead-zinc contents of the orebodies in Ban Lim area mainly comply with the standard normal distribution. The average thicknesses of the orebodies are in a range from 0.92 m to 6.48 m, its coefficient of variation (Vm) is in the range from 8.7% (stable) to 132.95% (very unstable). Quantitative calculation results have shown that Ban Lim lead-zinc deposit belongs to group III of deposits. For the exploration of this type of minerals, it is recommended to use linear grid pattern. Appropriate exploration grid pattern for category 122 reserve is (60-80)×(30-40) m.


REFERENCES:

1. D.Q. Binh (ed.). Report on prospective setting of lead-zinc, gold and accompanying minerals in Phia Da - Na Cang area. Vietnam Institute of  Geosciences and Mineral resources (in Vietnamese) (2004)

2. A.B. Kazdan. Prospecting and exploration of mineral deposits. Nedra Publishers, Moscow (in Russian) (1997)

3. N.V. Phu (ed.). Report on exploration of lead - zinc deposit in Ban Lim area, Thai Hoc village, Bao Lam district and Son Lo village, Bao Lac district, Caobang province. Dong Bac Geological Division (in Vietnamese) (2019)

4. P.Q. Tri (ed.). Report on prospective evaluation of lead-zinc ores in Ban Lim - Phi Dam area, Caobang - Bac Kan province. General Department of Geology and Minerals of Vietnam (in Vietnamese) (2013)

5. E.O. Pogrebiski. Prospecting and exploration of mineral deposits. Nedra Publishers, Moscow (in Russian) (1973)

6. K. Saikia, B.C. Sarkar. Exploration drilling optimisation using geostatistics: a case in Jharia Coalfield, India. Applied Earth Science, vol. 115, No. 1, 13-25 (2006) https://doi.org/10.1179/174327506X102787

7. Vietnam Ministry of Natural Resources and Environment. Decision of Promulgating the Regulation on classification of solid-mineral deposits and resources (Number: 06/2006/QD-BTNMT), Hanoi, June 07, 2006 (in Vietnamese) (2006)

8. F.W. Wellmer. Statistical evaluations in exploration for mineral deposits. Springer - Verlag Berlin Heidelberg, Printed in Germany (1998) https://doi.org/10.1007/978-3-642-60262-7

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