证据权法在新疆卡拉麦里金矿带断层与金矿化空间定量评价中的应用

新疆东准噶尔卡拉麦里金矿带是新疆重要的金成矿带之一,相关学者开展了大量的生产和科研工作,取得了丰硕的找矿成果,积累了大量的研究。近年来,随着向深部探测工作的兴起和成矿预测方法的不断成熟,由定性研究向定量研究成为一种必然选择。研究在以往科研成果综合研究的基础上,建立基于ArcGis平台的数据库,应用证据权法开展卡拉麦里金矿带断层与金矿化空间定量评价研究,研究表明断层距离和断层密度为重要的证据权因子,断层距离在0~1500 m范围内,成矿作用最强,随着距离的增大,成矿作用变弱。断层密度在0.26~0.66为中高有利成矿区域。该研究成果对卡拉麦里金矿带深部及外围的找矿工作具有重要意义。

APPLICATION OF EVIDENCE WEIGHT METHOD IN QUANTITATIVE EVALUATION OF FAULTS AND GOLD MINERALIZATION IN KALAMAILI GOLD BELT, XINJIANG

The Kalamaili gold belt in East Junggar is one of the important gold metallogenic belts in Xinjiang. Relevant scholars have carried out a large number of production and scientific research work, and achieved fruitful results in ore-finding, and accumulated a lot of research. In recent years, with the rise of deep exploration and the maturity of mineralization prediction methods, qualitative research has become an inevitable choice. Based on the previous comprehensive research, this research establishes a database platform based on ArcGis platform, and uses the evidence weight method to carry out quantitative evaluation of fault and gold mineralization space. The results show that the fault distance and density are important evidence weight factors. When the fault distance is in the range of 0~1500 m, the mineralization is the strongest. As the distance increases, the mineralization becomes weaker; when the fault density is between 0.26 and 0.66, it is a medium-high favorable ore-forming area. The research results are of great significance for the prospecting work in the deep and peripheral areas of the Kalamaili gold belt.