CAJ | 학술논문

五龙沟金矿是青海省东昆仑成矿带最具找矿潜力的矿床. 在搜集五龙沟地区金多金属矿床成矿大地构造背景、区域地层、岩性、构造、岩浆岩等方面资料的基础上,首先对区内典型金多金属矿床地质特征分别进行了描述,然后从地层、岩浆岩、构造等方面对区内金多金属矿床的控矿因素进行了系统分析,最后从矿床成矿时间、空间分布及成因等方面对成矿规律进行了总结. 结果表明:①五龙沟地区金多金属矿床产于构造韧性剪切带中,受构造及其演化控制明显;②金矿床在时间上具有多阶段性和长期性的分布规律,在空间上严格沿3条韧性、脆-韧性剪切带分布,各剪切带内矿床具有等距性和平行性的分布特点;③多金属矿床多分布于剪切带与后期NE—SW向的断裂带交汇部位,往往成群成组分布;④金矿体形成于多金属矿之前,以深部岩浆为主的壳幔混源、壳源是金多金属矿的重要成矿物质来源,伴随构造演化使成矿物质进一步活化并富集形成金多金属矿体. 上述研究成果对于区内进一步开展金多金属矿、构造热液蚀变型矿床的找矿工作具有一定的参考价值.
오룡구금광시청해성동곤륜성광대최구조광잠력적광상. 재수집오룡구지구금다금속광상성광대지구조배경、구역지층、암성、구조、암장암등방면자료적기출상,수선대구내전형금다금속광상지질특정분별진행료묘술,연후종지층、암장암、구조등방면대구내금다금속광상적공광인소진행료계통분석,최후종광상성광시간、공간분포급성인등방면대성광규률진행료총결. 결과표명:①오룡구지구금다금속광상산우구조인성전절대중,수구조급기연화공제명현;②금광상재시간상구유다계단성화장기성적분포규률,재공간상엄격연3조인성、취-인성전절대분포,각전절대내광상구유등거성화평행성적분포특점;③다금속광상다분포우전절대여후기NE—SW향적단렬대교회부위,왕왕성군성조분포;④금광체형성우다금속광지전,이심부암장위주적각만혼원、각원시금다금속광적중요성광물질래원,반수구조연화사성광물질진일보활화병부집형성금다금속광체. 상술연구성과대우구내진일보개전금다금속광、구조열액식변형광상적조광공작구유일정적삼고개치.
Wulonggou gold deposit is the most potential mineralization deposit in eastern Kunlun metallogenic belt of Qinghai province. Based on collecting the geological information of Wulonggou gold deposit including its ore-forming tectonic background,regional strata and intrusions,structure and so on,firstly,the geological characteristics of typical gold-polymetallic deposits in Wulonggou area are analyzed in depth;then,the ore-controlling factors of the gold-polymetallic deposits in Wulong-gou area are analyzed systematically from the perspective of strata,magmatic rocks and structures;finally,the metallogenic reg-ularity of the gold-polymetallic in Wulonggou area are summarized from the aspects of metallogenic time,space distribution and ore genesis. The results show that:①Wulonggou gold deposit is located in the ductile shear zones and it is controlled obviously by the structure evolution;②the gold deposits have the multiple stages and long-term distribution regularities in time domain while in spatial domain,the gold deposits are along the three ductile and brittle-ductile shear zones strictly,the deposits within the shear zones has the distribution characteristics of equidistance and parallelism;③the gold-polymetallic deposits are located in the intersection zones of the shear zones and NE-SW trending fault,they are distributed in groups frequently;④the gold ore-body is formed before the polymetallic ore,deep magma is the main composition of crust-mantle mixed source and crust source, they are the important source of ore-forming materials,associated with the tectonic evolution,the ore-forming materials are acti-vated further and enriched into polymetallic orebody. The above research results have some reference for the further prospecting work of gold-polymetallic and tectonic hydrothermal alteration type deposits in this area.