文章摘要
陈丽芳,王晓亮,刘永俊,丁志刚.辽东岫岩地区金家东沟金多金属矿床地质特征、成矿物质来源及成矿模式[J].矿产勘查,2020,11(10):2095-2101
辽东岫岩地区金家东沟金多金属矿床地质特征、成矿物质来源及成矿模式
Geological characteristics, mineral sources and metallogenic model of the Jinjiadonggou gold polymetallic deposit in Xiuyan area, eastern Liaoning Province
投稿时间:2020-06-18  
DOI:
中文关键词: 金多金属矿  地质特征  物质来源  成矿模式  岫岩  辽东
英文关键词: gold polymetallic deposit, geological characteristics, material source, metallogenic model, Xiuyan, eastern Liaoning Province
基金项目:
作者单位
陈丽芳 辽宁省地质矿产研究院有限责任公司,辽宁 沈阳 110032 
王晓亮 辽宁省地质矿产研究院有限责任公司,辽宁 沈阳 110032 
刘永俊 辽宁省第二水文地质工程地质有限责任公司,辽宁 大连 116037 
丁志刚 辽宁省地质矿产研究院有限责任公司,辽宁 沈阳 110032 
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中文摘要:
      该文采取多重技术研究手段,重点查明了辽东岫岩地区金家东沟金多金属矿床地质特征、成矿物质来源及成矿模型。金家东沟金多金属矿床矿体总体走向约60°,为矿化蚀变石英脉,以褐铁矿化为主,有少量黄铁矿化,矿脉宽为1~2.5 m,矿体可见延伸100 m左右,呈脉状-网脉穿插构造裂隙或围岩晚三叠世中细粒二长花岗岩的裂隙中。Au品位为0.033×10-6~17.4×10-6,Ag品位为0.14×10-6~396×10-6。S同位素测试结果显示,金家东沟金多金属矿床中的黄铁矿的δ34SV-CDT均为正值,其S来源与其围岩晚三叠世中细粒二长花岗岩有密切关系。金家东沟金多金属矿床的成矿模式为石英脉沿燕山晚期构造充填,将晚三叠世花岗岩矿源层中的金、银等成矿物质活化、迁移,在有利构造位置发生沉淀,进而成矿。
英文摘要:
      This paper adopts field geological survey, geochemical comprehensive profile measurement, trough exploration, petrography, petrogeochemistry, isotope tracing and other technical research methods. The geological characteristics, sources of metallogenic materials and metallogenic models of the Jinjidonggou gold polymetallic deposit in The Xiuyan area of eastern Liaoning province have been emphatically identified. Jinjiadonggou gold polymetallic deposit ore body about 60°, the general trend of mineralized alteration quartz vein, mainly limonite mineralization, there are a few pyritization, vein width 1-2.5 m, ore body extending about 100 m, a vein-net vein with structural fissure or surrounding rock in the late Triassic fine grained monzonitic granite cracks.Au grade is 0.033×10-6-17.4×10-6, Ag grade is 0.14×10-6-396×10-6.S isotope test results show that δ34SV-CDT of pyrite in Jinjiadonggou gold polymetallic deposit.The S source of the ore deposit is closely related to the middle fine monogranites in the late Triassic. The metallogenic model of The Jinjiadonggou gold polymetallic deposit is the filling of the quartz vein along the structure in the late Yanshan Period, in which the gold, silver and other metallogenic substances in the late Triassic granite source layer are activated and transported, and the deposits occur in favorable tectonic locations, and then the mineralization occurs.
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