晚白垩纪的凤翩山花岗杂岩(图1)位于日本西南部山口县城西北约八公里处,由于一些重要原因而引起人们的特别注目。从地质环境上看,它独立地产在山阳花岗岩省与山阴花岗岩省之间,而从地球化学上看,发现该杂岩及其附近具有钴、硼的高度富集。Kato(1912)注意到针状电气石的产状,首先描绘了杂岩范围内的药王寺铜矿床。此后他又做了许多研究,但是,对伴生矿床及花岗杂岩本身的地质和矿物特征几乎未作综合研究。 The Late Cretaceous Pinaone granodiorite (Figure 1) is located about eight kilometers northwest of Yamaguchi Prefecture in southwestern Japan, attracting particular attention for some important reason. Geologically speaking, it is independently produced between the Sanyang granite province and the Shanyin granite province. From the geochemical point of view, it is found that the complex and its vicinity have a high concentration of cobalt and boron. Kato (1912) noted the state of acicular tourmaline, first depicting the Yulinwang copper deposit within the complex. Since then he has done a lot of research, however, almost no comprehensive study of the geological and mineral characteristics of associated deposits and granitic complexes.