摘要
牛尾岩—观音山多金属矿区位于吴川—四会深断裂中北端西侧,英德弧型构造前弧西翼,连阳岩体的北东缘,南岭地区重要多金属成矿带的南缘。赋矿围岩为石炭系下统石磴子组灰、深灰色至灰黑色中—厚层生物碎屑灰岩夹结晶灰岩、粒屑灰岩,局部夹薄层状泥质灰岩或少量的白云质灰岩。矿石类型主要为硫化物型铅锌多金属矿石及铁多金属矿石,矿体呈脉状或透镜状产出,与矿化关系密切的围岩蚀变主要有夕卡岩化、硅化等。夕卡岩化、硅化、黄铁矿化、褐铁矿化4种蚀变相伴出现,可作为该区的找矿标志。
Niuweiyan - Guanyin mountain polymetallic deposit is located in the western side of middle - northern Wuchuan - si- hui deep fault, the west wing of the frontal Yingde arc tectonic structure, the northeastern edge of Lianyang intrusive,and southern part of key Nanling polymetallic mineralization region. The country rock is gray to dark gray, ash black bioclasticlime stone of Shidengzi Formation under Lower Carboniferour system, with intercalation of crystalline limestone and grain limestone, and partly with thin layer of argillaceous limestone or less dolomitic limestone. The ore type is mainly sulfide type lead - zinc ore and iron polymetallic ore. The orebody occurs in forms of vein type or lenticular shape. The main alteration associated with mineralization are mainly skarnization, and silicification etc, associated with the spatial distribution of skarnization, silicification, pyritization and ferritization could be taken as prospecting criteria in this region.
出处
《矿产勘查》
2013年第1期56-61,共6页
Mineral Exploration
基金
广西区研究生教育创新计划项目(编号:2011105960818M09)资助
关键词
广东
牛尾岩-观音山多金属矿
地质特征
找矿标志
Guangdong
Niuweiyan - Guanyinshan polymetallic deposit
geological characteristic
prospecting criteria
