摘要
五龙金矿区广泛分布的花岗糜棱岩类岩石利于矿液的渗透及与围岩的物质交换,致密细粒闪长岩脉为金矿的形成提供了“屏敝”空间。韧—脆性裂隙构造控制了含金石英脉的空间分布及形态,剪切活动的多期性与矿石构造的多类型、金矿化的多阶段性相适应。中生代的岩浆侵入活动提供了金矿热液的来源。糜棱岩带及不同规模的韧—脆性裂隙构成了矿液的迁移通道。封闭条件较好的裂隙构造是最为有利的赋矿空间。
The granitiod mylonites commonly distributed in Wulong gold deposit are convenient to the permeation of ore-forming fluid
and material exchange with adjacent rocks.The diorite vein with compact texture provides a 'protective screen' space for the
formationof gold deposit.The ductile-brittle fracture zone dominates the spactial distribution of auriferous quartze vein.The
polycycle of shearing is adaptecdto the polytype of ore structure and the multistage of gold mineralization.The ore-forming fluid is
mainly derived from the Mesozoic magamatic intrution.The mylonite zone and ducitle-brittle fractures constitute the migration
tunnel of ore-forming fluid.The fractures with well closed system are available to the ore housing space.
出处
《地质与勘探》
CAS
CSCD
北大核心
1993年第8期23-26,共4页
Geology and Exploration
