伊通放牛沟多金属硫铁矿床地质特征

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英文篇名：Geological characteristics of polymetallic pyrite deposit in Fangniugou, Yitong 作者：李晓帅 ; 李天斗 ; 李中群 ; 李娜伟 英文作者：LI Xiao-shuai;LI Tian-dou;LI Zhong-qun;LI Na-wei;The Second Geological Survey of Jilin Province; 关键词：伊通放牛沟 ; 硫铁矿 ; 热水喷流型 英文关键词：Yitong Fangniugou;;pyrite;;hydrothermal-exhalation sedimentary 中文刊名：吉林地质 英文刊名：Jilin Geology 机构：吉林省第二地质调查所; 出版日期：2019-06-15 出版单位：吉林地质 年：2019 期：02 语种：中文; 页：54-58 页数：5 CN：22-1099/P ISSN：1001-2427 分类号：P618.2

摘要

吉林伊通放牛沟硫铁矿是吉林省三大硫铁矿之一,规模中型。伊通放牛沟多金属硫铁矿产于以海相火山-沉积为主的地层中。属于海底火山-沉积型热水喷流型多金属矿床。矿体赋存在奥陶系上统石缝组中;矿床成因主要特点是:①层控矿;②海相火山活动与成矿物质来源关系密切;③硫同位素测定资料接近陨石硫,与日本黒矿相近;④Co/Ni比值>1,亦与日本黒矿相近,具有海底热流沉积的块状硫化物矿床面貌;⑤包体测温为320～370℃,PH值为7.5～7.7,Eh值为140～225 mv。为中温弱碱性环境下形成。
        Yitong Fangniugou polymetallic pyrite mine is one of the three major pyrite mines in Jilin Province, medium scale. Formed in marine volcanic-sedimentary strata, it mainly belongs to the polymetallic deposits of the type of submarine volcanic exhalation sedimentation. The ore bodies are located in the Shifeng Formation of upper Ordovician System. The main genetic characteristics of the deposit are: ① It is strata-bound deposit; ②Marine volcanic activities are closely related to the source of the ore-forming material; ③ The determination data of sulfur isotopes issimilar to that in the meteorite sulfur and the Kurokoin Japan; ④ The cobalt-nickel ratio is greater than 1, which is also similar to the Kuroko in Japan and characterized by the features of massive sulfide deposits deposited by submarine thermal flow; 5.The inclusion thermometry is 320-370°C, the PH value is 7.5-7.7, and the Eh value was 140-225 mv, it is formed in the environment of medium temperature and weak alkaline.

引文

[1]吉林省第三地质调查所.吉林省伊通县放牛沟多金属硫铁矿详查报告[R].
    [2]姚凤良,孙丰月.矿床学教程[M].北京:地质出版社.2006.8
    [3]端木和顺.沉积喷流型矿床热水沉积旋回及其地球化学特征[A].西安科技学院报.2003.