胶东地区裸露含金构造的地球化学评价

为评价裸露含金构造,提出了一种新的地球化学评价方案,包括纵向采样布局和数据解释的对应分类法.用新的采样布局代替常规布局,能以较少的成本获得较多的经济效益,在平度地区以2 439个样品发现了84条有价值的含金构造.对应分类法继承和改善了常规方法,能用较简单步骤和单一图件更有效地揭示数据中的核心信息.在纪山地区,据此单一图件提供了不同元素组合类型、不同地球化学单元类型、单元的等距性、单元的分带性、已知矿单元的各种地球化学特征和靶区等,特别是显示了区内一个典型地球化学分带序列.对应分类法还可用于其它领域.

Geochemical Evaluation for Uncovered Gold-Bearing Structures in Jiaodong Area

In order to evaluate the uncovered gold-bearing structures, a new geochemical evaluation program, which consists of lengthwise sampling distribution and corresponding classification for data interpretation, is suggested. Replacing usual sampling distribution with new one,more economic results can be obtained by less cost,and 84 gold-bearing structures have been found by 2 439 samples in Pingdu area. With corresponding classification, the usual methods are inherited and modified, the key information in data can be exposed more effectively based on simpler steps and single graph. According to this graph, the deferent types of element combinations, types of geochemical units, the equidistant-ness and zoning of units, a variety of geochemical characteristics of known mine units and the target districts etc., are all presented in Jishan area. Especially a typical geochemical zoning sequence is shown in it. The corresponding classification discussed here can also be applied to other subjects. In brief, this program possesses the nature of optimization to certain degree.