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根据对海底多金属硫化物矿床成矿机理、成矿地质环境和地质异常信息的研究,确定了水深、构造、地震、重力异常、磁力异常等9项评价因子,通过指标标准化处理,建立了指标体系。采用层次分析法设计了4个层次的递阶结构模型。通过建立比较矩阵,确定了各层次因子的权重,形成了一套完善的评价方法和指标体系。根据评价结果,最有利区域(Ⅰ类区)占工区面积的58.33%,比较有利的前景区域(Ⅱ类区)占32.41%,二者也是近期突破的重点目标区。为下一步缩小勘探目标区提供了依据。
Based on the research on the metallogenic mechanism, metallogenic geological environment and geological anomaly information of seabed polymetallic sulphide deposits, 9 evaluation factors such as water depth, structure, earthquake, gravity anomaly and magnetic anomaly have been determined. Through the standardization of indicators, indicators system. Using the analytic hierarchy process, four levels of hierarchical structure model are designed. By establishing a comparison matrix, the weight of each level factor is determined, and a set of perfect evaluation methods and index system are formed. According to the evaluation results, the most advantageous area (type I area) accounts for 58.33% of the work area and the more prospective area (type Ⅱ area) accounts for 32.41%, both of which are also the key target areas for the recent breakthrough. This will provide the basis for further exploration of the target area.