摘要
“东川式”铜矿在全省铜矿资源中占有极为重要的地位,但其成因一直争议颇大。结合近年的工作成果,笔者分析了导致争议的因素。本文从含铜沉积盆地形成演化的构造特征、火山活动,含矿层位归属、沉积成岩成矿标志、矿体产出特征及稀土特征和伴生组份等方面论述了“东川式”各亚类铜矿的成因,并指出了它们之间的内在联系和表现形式上的差别。
The‘Dongchuan type’copper deposits holds an important position in the copper ore resources of Yunnan province, its genesis has been arguing. The author thinks that the‘Dongchuan type’copper deposits can be divided into three categories. From the structural Characteristics of the formation and evo-lution of copper-bearing sedimentary basin, volcanism,ore-bearing horizon, marks on sedimentary diagenesis and mineralization, occurring features of orebody and rare-earth and associated components contained in orebodies, this paper demon-strated the geneses on each subcategory in‘Dongchuan type’copper deposits and pointed out the inherent relations and occurrence difference between them.
出处
《云南地质》
1992年第1期47-51,共5页
Yunnan Geology
