湖南通道地区金矿床中黄铁矿成分标型特征及对矿床成因的启示
高华,谢玉华,杨亮,张哲,柯新星,刘晓敏,罗建镖,刘琦,刘继顺,王智琳,孔华

Composition Typomorphic Characteristics of Pyrite and Its Genetic Implication for Gold Deposits in Tongdao County,Hunan Province
Hua GAO,Yuhua XIE,Liang YANG,Zhe ZHANG,Xinxing KE,Xiaomin LIU,Jianbiao LUO,Qi LIU,Jishun LIU,Zhilin WANG,Hua KONG
图5 金坑矿区矿石显微组构
(a)含硫化物团块石英脉;(b)硅化含砾砂岩中含硫化物团块;(c)黄铁矿(PyJ)被包裹在毒砂中,黄铁矿呈半自形—自形,右侧颗粒为五角十二面体;(d)半自形毒砂交代自形立方体外形黄铁矿;(e)毒砂、黄铁矿和黄铜矿共生,黄铁矿为自形五角十二面体,黄铜矿为他形粒状;(f)半自形闪锌矿交代黄铁矿,黄铁矿有五角十二面体和立方体,以五角十二面体外形为主;(g)闪锌矿呈脉状交代毒砂;(h)、(i)呈斑点状产出的自形黄铁矿被针铁矿完全交代,呈假象结构,黄铁矿呈五角十二面体和立方体外形;Apy-毒砂;Py-黄铁矿;Ccp-黄铜矿;Sp-闪锌矿;Gt-针铁矿
Fig.5 Ore micro-fabric in Jinkeng deposit