东川稀矿山式铁铜矿控矿条件新认识  

THE NEW KNOWLEDGE OF ORE CONTROL CONDITION OF XIKUANGSHAN-TYPE FE-CU DEPOSIT IN DONGCHUAN

作　　者：喻国东 

机构地区：[1]云南省有色地质局313队,云南玉溪653100

出　　处：《云南地质》2011年第3期316-320,共5页Yunnan Geology

摘　　要：落因背斜两翼地层构造、地层岩相、含矿的差异性,证明背斜轴部存在生长断层。凡有长断层出现,因民组、落雪组岩相剧变,伴随碱性火山喷发-喷溢活动形成细碧岩、基性熔岩、角砾岩之处成为成矿必要条件。The differences in strata, structure, rock facies and ore - bearing of two limbs of Luo - Yin anti- cline prove that there is the fauh in the anticlinal axis. The necessary conditions of metallogenesis are appearance of growth fault; intense variation of Yinmin Formation, Luoxue Formation rock facies; the places of forming spilite, basic lava, breccia.

关 键 词：裂谷早期 裂堑盆地 生长断层 碱基性火山喷发 喷溢热水沉积成矿 

分 类 号：P618.41[天文地球—矿床学]