古利库金(银)矿床的稳定同位素地球化学特征

朱群; 王恩德; 李之彤; 杨芳林

古利库金(银)矿床的稳定同位素地球化学特征

1.
东北大学资源与土木工程学院, 辽宁沈阳 110004;

2.
沈阳地质矿产研究所, 辽宁沈阳 110033

详细信息

作者简介: 朱群(1963-),男,研究员,东北大学资源与土木工程学院博士研究生,1988年毕业于中国地质科学院,从事区域地质和矿产资源评价研究工作,通讯地址沈阳市北陵大街25号,邮政编码110033,E-mail://syzqun@cgs.gov.cn

中图分类号: P618.51;P618.52

收稿日期: 2004-02-06

刊出日期: 2004-03-31

STABLE ISOTOPE COMPOSITION OF GULIKU GOLD(-SILVER) DEPOSIT

1.
Instiute of Resources and Civil Engineering, Northeast University, Shenyang 110004, China;

2.
Shenyang Institute of Geology and Mineral Resources, Shenyang 110033, China

Received Date: 06 February 2004

Publish Date: 31 March 2004

摘要

摘要: 通过对大兴安岭古利库金银矿床的成矿热液流体的温度测定和同位素组成的研究,确定该矿床属浅成低温热液类型,并将成矿作用划分为2个成矿阶段,早期阶段成矿温度240~280℃,晚期成矿温度185~235℃.成矿热液流体的氢氧同位素组:δDH2O-76‰~-94‰,δ18O-6.58‰~-14.11‰,表明成矿热液来自大气降水.矿石的硫和铅同位素组成说明成矿热液硫来自中生代火山岩,而铅是从基底落马湖变质岩系及相伴的兴凯期花岗岩类中萃取出来的.
- 古利库金(银)矿床 /
- 稳定同位素 /
- 浅成低温热液
Abstract: Guliku gold (-silver) deposit is located at the connection of Dayangshu volcanic basin and Luomahu intermediate uplift. Besed on the stable isotope composition study, a mineralization model for Gulilu Au (-Ag) deposit is proposed, i.e.an adular-sericite type of epithermal gold (-silver) deposit with horizontally zoned Au-Ag ore bodies occurring in the limb of a paleo-volcanic dome on the margin of a Mesozoic continental volcanic basin.The mineralization is in two stages.The temperature of the early stage is between 240℃ and 280℃,while that of the late stage is from 185℃ to 235℃.The isotopic composition (δDH2O-76‰ to-94‰,δ18O-6.58‰ to-14.11‰) suggests that the minerlizing solution is derived from mainly meteoric water. The S and Pb isotopic study shows that the "hydrothermal sulfur" is derived from volcanic rocks and the "hydrothermal lead" is from the basement and associated granitoids.
- Guliku gold(-silver) deposit /
- stable isotope /
- epithermal deposit

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古利库金(银)矿床的稳定同位素地球化学特征

1. 东北大学资源与土木工程学院, 辽宁沈阳 110004; 2. 沈阳地质矿产研究所, 辽宁沈阳 110033

作者简介: 朱群(1963-),男,研究员,东北大学资源与土木工程学院博士研究生,1988年毕业于中国地质科学院,从事区域地质和矿产资源评价研究工作,通讯地址沈阳市北陵大街25号,邮政编码110033,E-mail://syzqun@cgs.gov.cn

STABLE ISOTOPE COMPOSITION OF GULIKU GOLD(-SILVER) DEPOSIT

1. Instiute of Resources and Civil Engineering, Northeast University, Shenyang 110004, China; 2. Shenyang Institute of Geology and Mineral Resources, Shenyang 110033, China

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1.
东北大学资源与土木工程学院, 辽宁沈阳 110004;

2.
沈阳地质矿产研究所, 辽宁沈阳 110033

1.
Instiute of Resources and Civil Engineering, Northeast University, Shenyang 110004, China;

2.
Shenyang Institute of Geology and Mineral Resources, Shenyang 110033, China