CAJ | 학술논문

得田沟金矿床属韧性剪切带－蚀变岩型金矿床。近东西向大冰沟韧性剪切带受控于区域变质作用和区域断裂构造———崎峰茶断裂，是金矿床（体）的主要控矿和贮矿构造。正长斑岩沿崎峰茶断裂带呈脉状产出，与金矿化具有明显空间分布关系，可能是金矿化的物质来源。该矿床形成时代为晚侏罗纪，成矿阶段主要由石英－硫化物阶段和石英－硫化物－碲化物阶段组成，并在主成矿期之后经历了表生热液作用的叠加。在阐述矿床地质特征的基础上，分析矿床成因，认为在北京及周边地区，韧性剪切作用发育、多元素地球化学异常叠加、激电异常明显并含有碱性岩（正长斑岩等）的部位是同类型金矿化的有利地区，具有重要的找矿指示意义。
득전구금광상속인성전절대－식변암형금광상。근동서향대빙구인성전절대수공우구역변질작용화구역단렬구조———기봉다단렬，시금광상（체）적주요공광화저광구조。정장반암연기봉다단렬대정맥상산출，여금광화구유명현공간분포관계，가능시금광화적물질래원。해광상형성시대위만주라기，성광계단주요유석영－류화물계단화석영－류화물－제화물계단조성，병재주성광기지후경력료표생열액작용적첩가。재천술광상지질특정적기출상，분석광상성인，인위재북경급주변지구，인성전절작용발육、다원소지구화학이상첩가、격전이상명현병함유감성암（정장반암등）적부위시동류형금광화적유리지구，구유중요적조광지시의의。
Detiangou Gold Deposit is a ductile shear zone and altered rock type deposit.The near latitudinally ex-tending Dabinggou ductile shear zone is controlled by regional metamorphism and the regional fault structure—Qifengcha,the main ore-hosting and controlling structure of the gold deposit( body) .Syenite porphyry,mostly exposed as dikes in Qifengcha Fault,is closely related in space with gold mineralization and maybe is the material source of gold.Detiangou gold deposit's metallogenic age is late Jurrasic,and its principal mineralization,which is slightly influ-enced by supergene hydrothermal activities afterwards,is mainly composed of quartz-sulfide stage and quartz-sul-fide-telluride stage.The paper describes the deposit's geological characteristics,analyzes its genesis,and points out that Beijing and its surrounding areas with combined indications such as strong ductile shearing,poly-elemental geochemi-cal anomalies,striking induced polarization anomaly and alkaline rocks( syenite porpherite etc.) are favorable for the same type gold mineralization.The paper bears guiding significance for prospecting.