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Remote Sensing for Land & Resources    2021, Vol. 33 Issue (2) : 182-191     DOI: 10.6046/gtzyyg.2020200
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A study of mine site selection of the Duolong ore concentration area in Tibet based on RS and GIS technology
ZHAO Longxian1(), DAI Jingjing2(), ZHAO Yuanyi2, JIANG Qi3, LIU Tingyue3, FU Minghai1
1. China University of Geosciences (Beijing) Chinese Academy of Geological Science,Beijing 100083, China
2. Institute of Mineral Resources, Chinese Academy of Geological Science, Beijing 100037, China
3. School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China
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Abstract  

Mineral resources are an important part of natural resources and constitute an important material basis for the development of human society. With the rapid development of economic construction, the demand for mineral resources has become increasingly urgent, and the ecological environment destruction caused by mineral development has also become increasingly prominent. The construction of green mines and green development is the inevitable trend of mine development. In the construction of green mines, the site selection of mines is particularly important. With the Duolong ore concentration area as the study area and through the good grades ii and Landsat8 remote sensing satellite image preprocessing, the authors extracted information of a series of important environmental factors such as fault location, vegetation coverage, drilling and mining area and exploratory trench, village, river, road, slope and elevation difference for quantitative interpretation and normalized processing; finally the analytic hierarchy process (AHP) was used to calculate weight coefficient of each factor and construct the green mining location model in the study area. Specific layout planning was carried out for the mining stopes, waste rock sites, administrative living areas, mineral processing plants and tailings ponds of some mineral deposits in the Duolong ore concentration area of Tibet so as to provide basic data and reference suggestions for the development and construction of green mines.
Keywords Duolong ore concentration area      RS      GIS      analytic hierarchy process      mine location     
ZTFLH:  TP79  
Corresponding Authors: DAI Jingjing     E-mail: 2428426555@qq.com;daijingjing863@sina.com
Issue Date: 21 July 2021
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Longxian ZHAO
Jingjing DAI
Yuanyi ZHAO
Qi JIANG
Tingyue LIU
Minghai FU
Cite this article:   
Longxian ZHAO,Jingjing DAI,Yuanyi ZHAO, et al. A study of mine site selection of the Duolong ore concentration area in Tibet based on RS and GIS technology[J]. Remote Sensing for Land & Resources, 2021, 33(2): 182-191.
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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2020200     OR     https://www.gtzyyg.com/EN/Y2021/V33/I2/182
Fig.1  Geological map of duolong ore concentration area
Fig.2  Technical flow chart
Fig.3  Interpretation result of environmental factor information
矩阵
因子 		C1 C2 C3 C4 C5 C6 C7 C8 C9
C1 1 3 2 2 2 3 4 1 1
C2 1/3 1 1/2 1/2 1/2 1 2 1/2 1/2
C3 1/2 2 1 1 1 1 2 1/2 1/2
C4 1/2 2 1 1 1 2 3 1 1
C5 1/2 2 1 1 1 2 2 1/2 1/2
C6 1/3 1 1 1/2 1/2 1 2 1/2 1/2
C7 1/4 1/2 1/2 1/3 1/2 1/2 1 1/3 1/3
C8 1 2 2 1 2 2 3 1 1
C9 1 2 2 1 2 2 3 1 1
Tab.1  Matrix of location modeling factor importance
Fig.4  Ruantitative assignment diagram of remote sensing geological factor information
Fig.5-1  Ruantitative assignment diagram of environmental factor information
Fig.5-2  Ruantitative assignment diagram of environmental factor information
建模因子 矿山选址评价赋值 权重系数
极好 好 中 差 极差
与断裂距离 [4 000,9 000] [2 000,4 000) [1 000,2 000) [500,1 000) [0,500) 0.188 7
与矿区距离 [0,800) [800,1 500) [1 500,2 500) [2 500,4 000) [4 000,9 000) 0.065 9
植被覆盖度 无 低 中 高 0.094 1
钻孔探槽密度 [5,7] [4,5) [3,4) [1,3) [0,1) 0.123 6
与村庄距离 [5 000,9 000] [3 000,5 000) [2 000,3 000) [1 000,2 000) [0,1 000) 0.101 8
与河道距离 [4 000,9 000] [2 000,4 000) [1 000,2 000) [500,1 000) [0,500) 0.071 1
与道路距离 [0,500) [500,1 000) [1 000,2 000) [2 000,4 000) [4 000,9 000] 0.044 0
坡度 [0,5) [5.0,15) [15,30) [30,45) [45,54] 0.155 4
高差 [0, 10) [10, 25) [25,50) [50,80) [80,115] 0.155 4
赋值 10 7 4 2 1 1
结果 [6.6,10] [5.8,6.6) [5.0,5.8) [4.0,5.0) [0,4.0)
Tab.2  Evaluation and assignment table of modeling factors for mine site selection
Fig.6  Result map of mine site selection in Duolong mining concentration area
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