论文部分内容阅读
近年来,日本开展了区域地球化学调查工作,该项工作是由日本矿业会下属的地球化学图研究委员会和化探实施技术研究委员会进行的.前一委员会完成了部分地区的各种地球化学图.采样密度每平方公里一个样,样品采自重砂.试样分析值的数理统计资料清楚地反映了矿化带、地热带及地层分布等情况.化探实施技术研究委员会从1974年4月至1977年8月,进行了关于绘制地球化学图的基础研究,从77年4月起,该项研究成果被应用于化探找矿工作中,以神岗矿山及其外围作为最初的调查地区.神岗矿山是日本最有代表性的接触交代矿床之一,其地质由飞弹复合岩体(变质岩类及深成岩类)、中生界(沉积岩类)以及侵入于上述两者间的岩脉类岩石组成.首次调查区的范围包括矿化作用程度不同的3类地
In recent years, Japan conducted a regional geochemical survey, the work by the Japan Mining Association under the Geochemistry Chart Research Committee and the Geochemical Exploration Implementation Technical Research Committee completed the first commission in some parts of the various geochemical map The sampling density is one sample per square kilometer and the samples are taken from heavy sand.The mathematical statistics of sample analysis value clearly show the distribution of mineralized zone, geothermal zone and stratum, etc. From April 1974 to In August 1977, a basic study on the mapping of geochemical maps was conducted. Since April 1977, the research results have been applied to the exploration of geochemical prospecting, taking the Shengang mine and its periphery as the initial survey area. The Shengang mine is one of the most representative contact metasedimentary deposits in Japan. Its geology is composed of missile complex rock (metamorphic rocks and plutons), Mesozoic (sedimentary rocks), and dikes intruding into the above two Rock composition.The scope of the first surveyed area included three types of land with different degrees of mineralization