论文部分内容阅读
前言日本列岛新鲜火成岩的金丰度鲜为人知,只有日本地质调查所(Ayabe等,1980)报道过如下一些标准岩石样品的分析结果:JA-1拉斑玄武安山岩:0.09ppb Au(箱根;真鹤);
Preface The abundance of fresh igneous rocks in the Japanese archipelago is poorly understood and only the results of the analysis of some of the standard rock samples reported by the Japan Geological Survey (Ayabe et al., 1980): JA-1 tholei basaltic andesite: 0.09 ppb Au crane);