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甘肃天水宽沟金矿床同位素地球化学特征研究
引用本文:李文良,张永强,卿敏,高洪兴,董华芳,王治华,袁士松.甘肃天水宽沟金矿床同位素地球化学特征研究[J].黄金科学技术,2011,19(3):4-8.
作者姓名:李文良  张永强  卿敏  高洪兴  董华芳  王治华  袁士松
作者单位:1. 武警黄金地质研究所,河北廊坊,065000
2. 甘肃省天水李子金矿有限公司,甘肃天水,741005
3. 陕西潼关中金黄金矿业有限责任公司,陕西渭南,714300
摘    要:通过对李子园地区宽沟金矿床氢、氧、硫、铅同位素特征的分析研究,讨论了该矿区成矿流体性质、来源及成矿物质来源等问题。氢氧同位素结果表明,宽沟金矿床成矿流体是一种混合源,以岩浆热液为主,有部分大气降水和变质热液的混入。硫同位素组成表明, 宽沟金矿床矿石硫以岩浆硫为主,同时混入了地层中的硫。铅同位素组成表明,成矿物质主要来源于深部的下地壳和上地幔,为壳幔混源,在成矿流体向上运移的过程中,有地层铅的混入,成矿与燕山期石英正长岩体关系密切。

关 键 词:宽沟金矿  同位素  地球化学特征  甘肃省
收稿时间:2010-10-21

Research on the Isotope Geochemical Characteristic of Kuangou Gold Deposit In Tianshui City,Gansu Province
LI Wenliang,ZHANG Yongqiang,QING Min,GAO Hongxing,DONG Huafang,WANG Zhihua,YUAN Shisong.Research on the Isotope Geochemical Characteristic of Kuangou Gold Deposit In Tianshui City,Gansu Province[J].Gold Science and Technololgy,2011,19(3):4-8.
Authors:LI Wenliang  ZHANG Yongqiang  QING Min  GAO Hongxing  DONG Huafang  WANG Zhihua  YUAN Shisong
Institution:1.Gold Geological Institute of CAPF,Langfang 065000,Hebei,China; 2.Lizi Gold Deposit of Gansu Province,Tianshui 741005,Gansu,China; 3.Tongguan China National Gold Mining Co.,Ltd.,Weinan 714300,Shaanxi,China
Abstract:By analysis on the characteristics of hydrogen,oxygen,sulfur and lead isotope of Kuangou gold deposit in Liziyuan area,we discuss the issues about the nature and source of ore-forming fluid and the source of metallogenic material.Hydrogen and oxygen isotope results show that ore-forming fluid of Kuangou gold deposit is a mixed sources,it is mainly magmatic hydrothermal,mixed some precipitation and metamorphic hydrothermal.Sulfur isotopic composition show that ore sulfur of Kuangou gold deposit is mainly magmatic sulfur,and mixed stratigraphic sulfur.Lead isotopic composition show that metallogenic minerals are from lower crust and upper mantle,it is the crust-mantle mixed source.During the process of upward migration of ore-forming fluids,it is mixed stratigraphic lead,and mineralization has close relationship with quartz syenite rock in Mesozoic.
Keywords:Kuangou gold deposit  Isotope  Geochemical characteristics  Gansu Province
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