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Số 61, Kỳ 3, [06 - 2020] - Tiếng Anh

Study on establishing a mining group of deposit and an exploration grid pattern for lead - zinc ore in Ban Lim area, Cao Bang province

DOI:10.46326/JMES.2020.61(3).05

  • Cơ quan:

    1 Faculty of Geosciences and Geoengineering, Hanoi University of Mining and Geology, Vietnam 2 Dong Bac Geological Division, Cach Mang Thang Tam road, Thai Nguyen City, Thai Nguyen, Vietnam

  • *Tác giả liên hệ:
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  • Nhận bài: 05-02-2020
  • Sửa xong: 26-05-2020
  • Chấp nhận: 30-06-2020
  • Ngày đăng: 28-06-2020
Trang: 38 - 50
Lượt xem: 3567
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Trích dẫn: 1

Tóm tắt:

Ban Lim area in Cao Bang province has proposed a high potential of lead-zinc resources, which have occurred in different rocks of geological formation. The paper-based on collecting, synthesizing, and geological processing data. In addition, mathematical methods were also applied to recognize studied objects of the exploration process using a quantitative description. The results how that the lead-zinc orebodies in Ban Lim area mainly occurred in lens-shaped and distributed in layered surfaces of the 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). Generally, 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 a linear grid pattern. Appropriate exploration grid pattern for the 122 category reserve is (60÷80) m × (30÷40) m. These calculated results are well- documented foundations that allow suggesting a mining group of deposit and an exploration grid pattern for lead-zinc ore in Ban Lim area and other lead-zinc deposits occurring in similar geological settings.

Trích dẫn
Khang Quang Luong, Hung The Khuong, Tuong Van Nguyen và Thu Thi Le, 2020. Study on establishing a mining group of deposit and an exploration grid pattern for lead - zinc ore in Ban Lim area, Cao Bang province, Tạp chí Khoa học kỹ thuật Mỏ - Địa chất, số 61, kỳ 3, tr. 38-50.
Tài liệu tham khảo

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

Nguyen Van Tuong, 2018. Research on mining group setting and exploration grid for lead - zinc ore type in Ban Lim area, Cao Bang province. Unpublished master thesis. Hanoi University of Mining and Geology (in Vietnamese).

Phung Quoc Tri (ed.), 2013. Report on the prospective evaluation of lead-zinc ores in Ban Lim - Phi Dam area, Cao Bang - Bac Kan province. General Department of Geology and Minerals of Vietnam (in Vietnamese).

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