湖南省新邵县大新金矿开发利用的经济评价研究
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摘要
针对目前许多以往被认为是低品位、无效益的矿床正得到越来越多的勘查和开发的现实情况,结合黄金部队在湖南省新邵县大新发现的低品位金矿的开发所面临的矿床经济评价问题,提出了“湖南省新邵县大新金矿开发利用的经济评价研究”课题。该课题对正确评价低品位金矿床的开发利用价值,实现金矿资源的有效利用,保障国家黄金工业可持续发展具有重要的现实意义。
     论文在全面总结国内外关于金矿资源经济评价、矿业权评估和矿床边界品位指标优化分析等研究成果的基础上,综合运用现代资产评估学、宏观经济学、微观经济学、产业经济学、产权经济学、资源与环境经济学、数理与应用统计学、哲学等科学,对矿业权评估理论与方法、矿床开发利用经济评价方法与模型、矿床经济品位分析及其应用等进行了系统的研究。
     首先,对矿产资源经济评价的系统理论进行了分析总结。认为矿产资源价值的大小,完全取决于其使用价值的大小;矿产资源评价的根本目的就是在技术上可行、经济合理的基础上,最大限度地利用矿产资源;矿床的经济价值是由多方面的因素影响的,但最终还是要归结到开发该处矿产资源所获得的效益情况来决定其经济价值。
     其次,从世界政治、经济、金融和矿产品供应等多个方面分析了黄金价格的影响因素,并提出了黄金价格的变化主要是由人们对美元的心理预期造成的这一全新观点。
     再次,对比总结了目前我国矿床经济评价方法与矿业权评估方法的异同点和优缺点,对矿床评价方法的统一提出了自己的见解,建立了矿床开发利用评价的新模型。
     最后,结合典型金矿床进行实例分析,分别用矿床经济评价方法、矿业权评估方法和新建立的矿床开发利用模型进行对比分析,论证大新金矿开发利用的可行性。将经济品位的概念应用到实际矿床经济评价中,正确评价了大新金矿床的经济价值,在对矿床可利用性评价的基础上,对大新金矿深部及外围进行了找矿预测,通过整体评价区域金矿资源的成矿潜力,为大新金矿的开发利用决策提供辅助意见。
     论文通过上述研究,找到了用矿业权评估与矿床经济评价方法评价金矿床的结合点,建立了矿床开发利用评价的新模型,形成了一套可操作性强的金矿保护性开采模式,结合当前世界经济发展形势与我国黄金产业现状,对我国黄金矿产资源的可持续发展和黄金矿产实行保护性开采提出了具体意见建议。
For the practical situations that more and more deposits that previously regarded as low grade and non-benefitial are explored and mined, combining the issue of economic assessment of deposit faced for the low grade gold deposit in Daxin, Xinshao County, Hunan Province, discovered by the engineering army of gold, a research subject,“Study on the Economic assessment for the Development and Utilization of Daxin Gold Deposit in Xinshao County, Hunan Province”, was put forward. This project has practical importance for correctly assessment of the development and utilization of low grade gold deposits, to realize effective utilization of gold resources, and ensuring the sustainable development of the gold mining industry.
     On the basis of comprehensive summarizing of the research results in the economic assessment of gold resources, evaluation of mineral property, and analysis and optimization of cut-off grade of deposits, this dissertation made systemic studies on the theories and methods of mineral property evaluation, the methods and models of economic assessment for deposit development and utilization, and analysis and application of economical grade for a deposit, where theories in modern asset valuation, macro-economics, micro-economics, industrial economics, property economics, resources and environmental economics, mathematic and application statistics, and philosophy were introduced.
     At first, the theory system of the economic assessment of mineral resources was analysed and summarized. It is believed that the value of mineral resources absolutely depends on their application value. The fundamental aim of mineral resources assessment is to utilize the mineral resources in maximum on the basis of being technically feasible and economically reasonable. The value of a mineral deposit is subject to influences of many factors, but finally it would be determined by the profitability of the mineral resources to be developed.
     Secondly, the influential factors on gold price were analysed from different aspects such as world politics, world economy, financial and supply of mineral products, and brand new concept was put froward that the changes of gold prices are mainly caused by the psychological expectation to US dollars.
     And further more, via comparison and summarization of the differences and merits of the economic assessment of mineral property in China, own point of view on mineral deposit assessment was put forward, and new model of deposit assessment for development and utilization was built.
     Finally, integrating a case study of typical gold deposit, the feasibility for the development of Daxin Gold deposit was discussed applying the methods of economic assessment and mineral property evaluation, and the newly set up model of deposit development and utilization. The concept of economical grade was introduced in practical deposit economic assessment, and the economic value of Daxin Gold Deposit was correctly assessed. On the basis of analysis of availability of the deposit, prospecting prognosis in the deep surrounding areas of Daxin deposit was made, which, by means of assessment of the metallogenic potential of gold resources in the area, provided helpful suggestions for he development and utilization of Daxin Gold Deposit.
     Through above studies, this dissertation found out the link points to conduct a gold deposit assessment in using mineral property evaluation and deposit economic assessment, new model of deposit assessment for development and utilization was set up, and a series of highly operable model for protective mining was formed. In consideration of the situations in current world economic development and domestic gold mining industry, practical suggestions for sustainalbe development of the gold resources in China and protective mining of the gold minerals were made.
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