隐伏矿弱缓异常识别与奇异性地质统计学建模

项目名称： 隐伏矿弱缓异常识别与奇异性地质统计学建模

项目编号： No.41272361

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 天文学、地球科学

项目作者： 陈志军

作者单位： 中国地质大学（武汉）

项目金额： 85万元

中文摘要： 找矿预测工作向覆盖区、向深部探索已成必然趋势。基于多重分形、自组织临界性理论、成矿作用动力学等理论发展起来的成矿奇异性理论是国际新兴研究方向，对揭示成矿作用非线性过程、地质异常体的空间聚散分布规律、成矿物质富集规律等方面具有独到作用。以研究基础较好东天山土屋-雅满苏地区和云南个旧矿集区为示范研究区，采用以局部奇异性分析方法为主导的多重场的弱缓异常识别方法，以Cheng-Agterberg模型为新一代的空间结构分析手段，以复杂系统的de Wijs模型为特色的异常场条件模拟方法，从而构建奇异性地质统计学理论体系框架及其方法技术，通过多学科的交叉融合及软件技术研发应用，探讨隐伏矿弱缓异常的有效识别与刻画、隐伏矿空间定位机理及定位规律的厘定与表征方法，进而初步构建隐伏矿空间定位预测的方法技术体系。奇异性理论与地质统计学理论的结合及其方法技术的进一步研究和实践有望为隐伏矿预测提供新的理论和实用方法。

中文关键词： 多重分形；局部奇异性；地质统计学；变差函数；弱缓异常

英文摘要： Prediction of mineral resources in the covered areas and the deep curst has become an inevitable trend. The singular mineralization theory is one of the new international research areas in the earth sciences, which involved in the multifractals theory, the self-organized critical theory, the ore-forming dynamics, etc.. It applies the local singularity analysis to measure the heterogeneity of the spatial patterns in a metallogenic domain. This method can reveal the rules the non-linear metallogenic processes, the spatial distributions of the anomaly geological bodies and the enrichment of the metallogenic materials. This research will select the area of Tuwo-Yamansu in Xinjing province and Gejiu area in Yunn province as the study areas where provide sound pe-research basis for the prediction of buried mineral deposits. We will employ local singularity analysis to investigate the weak anomalies from various anomalous geobodies, take Cheng-Agterberg semi-variogram model as the mathematical tool for spatial struct analysis, and develop de Wijs model for the complex systems to achieve the conditional simulation. Therefore, The singularity geostatistics framework and its methods and techniques will be built. This research will promote the effective identification and depiction of the weak anomaly of the concealed depo

英文关键词： multifractals；local singularity；geostatistics；semivirogram； weak anomaly