青海五龙沟地区金多金属矿成矿规律

金属矿山 ›› 2015, Vol. 44 ›› Issue (10): 110-115.

青海五龙沟地区金多金属矿成矿规律

马国栋^1,2，韩玉²，陈苏龙²，李玉莲²，贾建团³

1.青海省地质调查局，青海西宁 810000；2.青海省第一地质矿产勘查院，青海海东 810600；3.青海省柴达木综合地质矿产勘查院，青海格尔木 816000

出版日期:2015-10-15 发布日期:2015-11-20
基金资助:
基金项目中国地质调查局基金项目（编号：12120114003201）。

Metallogenic Regularity of the Gold-polymetallic Deposits in Wulonggou Area,Qinghai Province

Ma Guodong^1,2，Han Yu²，Chen Sulong²，Li Yulian²，Jia Jiantuan³

1.Qinghai Geological Survey，Xining 810000，China；2.The First Institute of Geology and Mineral Resources of Qinghai Province，Haidong 810600，China；3.Integrated Institute of Geology and Mineral Resources Exploration of Qaidam in Qinghai Province,Golmud 816000，China

Online:2015-10-15 Published:2015-11-20

摘要/Abstract

摘要： 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。

关键词: 金多金属矿, 矿床地质特征, 控矿因素, 矿床成因, 成矿规律, 找矿工作

Abstract: 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 Wulonggou area are analyzed systematically from the perspective of strata，magmatic rocks and structures；finally，the metallogenic regularity 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 orebody 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 activated 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.

Key words: Gold-polymetallic, Geological characteristics of deposits, Ore-controlling factors, Genesis of mineral deposit, Mineralization regularity, Prospecting work

马国栋, 韩玉, 陈苏龙, 李玉莲, 贾建团. 青海五龙沟地区金多金属矿成矿规律[J]. 金属矿山, 2015, 44(10): 110-115.

MA Guo-Dong, HAN Yu, CHEN Su-Long, LI Yu-Lian, JIA Jian-Tuan. Metallogenic Regularity of the Gold-polymetallic Deposits in Wulonggou Area,Qinghai Province[J]. Metal Mine, 2015, 44(10): 110-115.

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