摘要
桃园式铜矿产于黑山组底部黑色碳质板岩和凝灰质板岩中。矿石的微量元素特征、黄铁矿的Co/Ni比值、黄铁矿和黄铜矿的硫同位素特征表明,成矿热液主要来自深部,少部分来自海水;稀土元素特征显示还原成矿环境;主要成矿阶段在晋宁晚期的基性岩浆活动时,或稍晚时期。主要控矿因素为地层及岩相古地理、构造、岩浆活动和矿化浓集中心。
Taoyuan-type copper deposit is in black carbonaeous shale and tuffaceous slate at bottom of Heishan formation. Trace elements characteristics of ore, Co/Ni ratio of pyrite and sulfur isotope analysis of pyrite and chalcopyrite indicate that the ore-forming hydrothermal fluid mainly comes from depth, a few from sea water. Characteristics of rare earth elements show a redusced metallogenic environment. Its main metallogenic phase is in late Jinning period when basic magmatism took place or later. Strata, litho-facies and paleogeography, structure, magma activity and mineralization concentration center are the ore-controlling factors.
出处
《地质找矿论丛》
CAS
CSCD
2012年第3期278-283,共6页
Contributions to Geology and Mineral Resources Research
基金
云南省院省校科技合作项目(编号:2003UDBEA00A026)
云南金沙矿业股份有限公司联合资助
关键词
桃园式铜矿
黑山组
控矿因素
东川铜矿
云南省
Taoyuan-type copper deposit
Heishan formation
ore-controlling factor
Dongchuan copperdeposit
Yunnan province
