| 吴德成,芦文泉,王国鹏,祁连忠,裴玉婷.东昆仑祁漫塔格地区野马泉铁多金属矿床开发利用评价[J].矿产勘查,2022,13(10):1517-1524 |
| 东昆仑祁漫塔格地区野马泉铁多金属矿床开发利用评价 |
| Evaluation on exploitation and utilization of the Yemaquan Iron polymetallic deposit in Qimantage area, east Kunlun |
| 投稿时间：2022-02-25 |
| DOI：10.20008/j.kckc.202210014 |
| 中文关键词: 矿体建模 环境评价 技术经济评价 铁多金属矿 野马泉 东昆仑 |
| 英文关键词: ore body modeling environmental assessment technical and economic evaluation iron polymetallic ore Yemaquan East Kunlun Mountains |
| 基金项目:本文受青海省格尔木市野马泉地区铁矿调查评价项目(1212010040127；1212011086025)资助。 |
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| 中文摘要: |
| 野马泉矿床位于东昆仑祁漫塔格地区,为矽卡岩型铁多金属矿床,其查明铁矿床和铜铅锌矿床均达到中型规模,但由于铁矿石中磁性铁占比较低,铜铅锌与铁共生关系相关性差等原因,一直未能开发利用。本次研究选择工作程度较高、资源量相对集中的M9、M10、M13三个矿段,运用3DMine三维建模软件进行矿体建模,将铜、铅、锌分别提高边界品位圈定矿体,对铁矿床开展磁性铁圈矿,采用距离幂次反比法重新估算资源量,并对资源开发的环境因素和技术经济进行评价,建立矿床的资源—环境—经济 “三位一体”综合评价方法。评价结果显示,项目全投资税后财务内部收益率10.88%,净现值22816万元,项目确定性(NPV＞0)79%。项目财务内部收益率大于期望值(8%),净现值大于0,且抗风险能力较高,说明项目技术经济可行,从而使野马泉矿区查明资源量的开发利用成为可能。 |
| 英文摘要: |
| The Yemaquan deposit is located in Qimantage area, east Kunlun, and is a skarn type iron polymetallic deposit. The identified iron ore and copper, lead and zinc ore are both medium-sized, but due to the low proportion of magnetic iron in iron ore and the poor correlation between copper, lead and zinc and iron ore, it has not been exploited. In this study, three ore sections M9, M10 and M13 with high working degree and relatively concentrated resources were selected, and 3d modeling software 3DMine was used for ore body modeling. The ore bodies were delineated by improving the boundary grade of copper, lead and zinc, respectively. Magnetic iron ring ore was developed for iron ore, and the distance power inverse ratio method was used to re-estimate the resource amount. It also evaluates the environmental factors and technical economy of resource exploitation, and the comprehensive evaluation method of resource-environment-economy of mineral deposits is established. The evaluation results show that the after-tax financial internal rate of return of the full investment of the project is 10.88%, the net present value is 228.16 million yuan, and the project certainty (NPV>0) is 79%. The financial internal rate of return of the project is greater than the expected value (8%), the net present value is greater than 0, and the risk resistance ability is high, indicating that the project is technically and economically feasible, so as to make the development and utilization of the identified resources in the Yemaquan mining area possible. |
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