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6 黄垢矿区矿石显微组构
(a)裂隙中含黄铁矿石英脉;(b)蚀变砂岩,其裂隙中以脉状产出硫化物,基质中也含硫化物;(c)含硫化物团块砂质板岩;(d)PyH-1为呈脉状产出在石英脉裂隙中的他形—半自形黄铁矿;(e)PyH-2产在蚀变砂岩裂隙中,呈半自形中粗粒或他形—半自形细粒;(f)PyH-3为产于蚀变砂岩中自形的具五角十二面体外形黄铁矿;(g)金红石交代半自形黄铁矿,金红石晚于黄铁矿生成;(h)PyH-4为自形立方体外形的黄铁矿,具环带结构,核部裂隙凹坑多,向边部变纯净,PyH-5为前者周围他形—半自形较细粒黄铁矿;(i)毒砂被拉长呈拔丝状,与黄铁矿共生,并交代黄铁矿;(j)毒砂交代黄铁矿,晚于黄铁矿生成;(k)针铁矿交代自形黄铁矿呈骸晶结构;(l)针铁矿交代自形黄铁矿呈假象结构;Apy-毒砂;Py-黄铁矿;Rt-金红石;Gt-针铁矿
Fig.6 Ore micro-fabric in Huanggou deposit