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Wang K.,Chinese Academy of Geological Sciences | Xiao K.,Chinese Academy of Geological Sciences | Li S.,China University of Geosciences | Li S.,Mineral Branch of Hunan Institute of Geological Survey | Gan X.,Mineral Branch of Hunan Institute of Geological Survey
Geological Bulletin of China | Year: 2015

In this paper, the integrated geological database was established based on overall collection and analysis of geological information using the Minexplorer software in the Limei Pb-Zn deposit of northwestern Hunan. A 3D deposit model was built mainly on 3D borehole data of the study area. Especially, the ore body model and stratigraphic model were taken as examples to introduce the general way for 3D geological modeling at the deposit scale. Reserve estimation was conducted based on the orebody model by using three methods, i.e., geological ore block method, geological section method, and geological statistics method. The results were compared with the results submitted in geological prospecting report of the deposit. It is proved that 3D modeling and reserve estimation using the Minexplorer software have several advantages such as convenience, better visualization and accuracy. ©, 2015, Science Press. All right reserved. Source


Li S.,China University of Geosciences | Li S.,Mineral Branch of Hunan Institute of Geological Survey | Xiao K.,Chinese Academy of Geological Sciences | Luo X.,Mineral Branch of Hunan Institute of Geological Survey | And 2 more authors.
Geological Bulletin of China | Year: 2015

Antimony reserves and production in Hunan have great influence both in China and abroad. The major ore deposits are of hydrothermal type, quartz vein type and clastic altered rock type. Hunan Province has good metallogenetic conditions and prospecting potential. Based on assessment of antimony mineral resources potential and situation of development and utilization, the authors delineated 9 metallogenic prospect areas, which included 3 Class A, 2 Class B, and 4 Class C metallogenic prospect areas. The quantity of potential resources was estimated at about 5.31 million tons. The results achieved by the authors will provide scientific basis for the reasonable planning of antimony exploration. ©, 2015, Science Press. All right reserved. Source


Li S.,China University of Geosciences | Li S.,Mineral Branch of Hunan Institute of Geological Survey | Xiao K.,Chinese Academy of Sciences | Luo X.,Mineral Branch of Hunan Institute of Geological Survey
Jilin Daxue Xuebao (Diqiu Kexue Ban)/Journal of Jilin University (Earth Science Edition) | Year: 2013

According to the Methodology of Deposit Modeling and Integrated Geological Information, and on the basis of geological, geophysical, geochemical, remote sensing and placer survey data in Hunan Province at the middle and large scales, 16 predicted areas are delineated by different prediction and evaluation models. By analyzing the ore-controlling factors and metallogenic regularity, combining with the comprehensive information ore predicting theory of GIS, the tin potential is predicted by quantitative and position finding methods. 221 minimum tracts are delineated, and potential resources amount is estimated at about 6.9066 million tons, including 1.2408 million tons proved reserves. The quantitative analysis is carried out for the predicted resources on basis of prediction models, depths, precisions and availability. Moreover, 24 exploration areas are determined, which provide scientific basis for the reasonable planning of tin exploration. Source


Li S.M.,China University of Geosciences | Li S.M.,Mineral Branch of Hunan Institute of Geological Survey | Xiao K.Y.,Chinese Academy of Sciences | Luo X.Y.,Mineral Branch of Hunan Institute of Geological Survey | And 2 more authors.
Advanced Materials Research | Year: 2014

The spatial data of mine is analyzed and processed in this study. This research mainly include: calculate 3d coordinate of points of drill hole axis, calculate 3d coordinates of drill hole axis and stratum surface, insert virtual drill hole and calculate it's ostiole 3d coordinate, divide and number stratum of study area. Finally, this research design drill hole database and realize storage and management of mine geological data. This study also researched the classification and characteristics of 3d spatial data model. Based on distribution characteristics of mine data and application purpose of 3d model, this paper choose quasi tri-prism as basic volume to build 3d geological model. The improvement of data structure and modeling algorithm of quasi tri-prism make it can better adapt to the complex geological body modeling. This research study the expansion rule of triangle, modeling algorithm of quasi tri-prism and finally design geologic body database and realize storage and management of geological modeling data. © (2014) Trans Tech Publications, Switzerland. Source

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