|本期目录/Table of Contents|

[1]李强,王兵岐,马治国,等.南秦岭凤太盆地金矿与铅锌矿的成矿模式[J].地球科学与环境学报,2007,29(01):15-21.
　LI Qiang,WANG Bing-qi,MA Zhi-guo,et al.Space-time Relationship of Gold Deposit to Lead-Zinc Deposit in Fengtai Ore Field in South Qinling[J].Journal of Earth Sciences and Environment,2007,29(01):15-21.
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第29卷
期数:
2007年第01期
页码:
15-21
栏目:
出版日期:
2007-03-15

文章信息/Info

Title:
Space-time Relationship of Gold Deposit to Lead-Zinc Deposit in Fengtai Ore Field in South Qinling
作者:
李强1; 王兵岐2; 马治国3; 王晓虎1
1.长安大学地球科学与国土资源学院,陕西西安710054; 2.宝鸡市八方山铅锌矿,陕西凤县721703;3.陕西八卦庙金矿,陕西凤县721705
Author(s):
LI Qiang 1; WANG Bing-qi2; MA Zhi-guo3; WANG Xiao-hu1
1. School of Earth Sciences and Resourses Management, Chang’ an University, Xi’an 710054, Shaanxi, China; 2. Ba fangshan Lead-Zinc Mine of Baoji City, Feng County 721703, Shaanxi, China; 3. Baguamiao Gold Mine of Shaanxi, Feng County 721705, Shaanxi, China
关键词:
凤太盆地; 金矿; 铅锌矿; 流体特征; 成矿模式; 南秦岭
Keywords:
Fengtai basin;  Gold deposit;  Lead-Zinc deposit;  fluid characteristic;  minerogenetic model;  South Qinling
分类号:
P618.51;P618.4
DOI:
-
文献标志码:
A
摘要:
通过对凤太盆地八卦庙金矿和八方山二里河铅锌矿的矿床地质、矿床地球化学、流体地球化学的研究, 发现两类矿床δ(30Si)分布范围与海底喷流沉积成因硅质岩的硅同位素接近,表明其属热水沉积成因。矿床 δ(34S)比较接近,但铅锌矿矿石中硫源来源更广。碳酸盐的碳、氧同位素特征显示两类矿床均具有热水沉积特 点,金矿的样品更趋向于火成岩,表明受后期岩浆热液影响更大。经过流体包裹体测温,金矿床均一温度变化范 围大,具有多期次多阶段的特征。矿床同位素和流体包裹体特征表明,金矿床与铅锌矿床在成矿物源、成矿流体 特征等方面都存在很多相似性,反映出热水喷流作用与两类矿床成因有密切的关系,但二者又存在差异。结合 成矿地质背景,认为铅锌矿的形成与定位受区域热变质改造和动力作用控制,而金矿的形成主要受晚期岩浆热 液活动控制,由此建立了金矿与铅锌矿的成矿模式。
Abstract:
Geological and geochemical fluid geochemistry study of Baguamiao Gold deposit and Bafangshan-Erlihe Lead-Zinc deposit in Fengtai basin show that the range ofδ(30Si)values of Gold deposits and Lead-Zinc deposit are close to the values of submarine exhalation, indicating its hydrothermal sedimentary origin. The value ofδ(34 S)are also close to each other, but the Sulphur source of Lead-Zinc deposit is more complicated and broadly. Carbon and Oxygen isotope of carbonate have the characteristic of the hydrothermal sedimentary while that of Gold deposit are more close to igneous rock, which indicates that deuterism have more effect. The study of fluid inclusions shows that the range of homogenizations temperatures of Gold deposit are more widely and have the characteristic of polyphase. All evidence indicates that Gold deposit and Lead-Zinc deposit are similarity in mineralization resource, fluid, isotope. which reflect that there is a certain genetic relation between the hydrothermal exhalation and Gold, Lead-Zinc mineralization. At the same time Gold mineralization are different from Lead-Zinc mineralization. Considering the metallogenic environment, it is pointed that the Zinc mineralization and location is controlled by the thermal altered metamorphism and dynamometamcrphism and the Gold deposit is controlled by the late-magmatic hydrothermalism. A minerogenetic model of Gold and Lead-Zinc deposit in Fengtai basin is set up.

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备注/Memo

备注/Memo:
收稿日期:2006-04-02 基金项目:中国地质调查局地质调查项目(200313000063) 作者简介:李强(1972-),男,新疆昌吉人,博士研究生,从事矿产资源与预测研究。E-mail:liq2000@163.com
更新日期/Last Update: 1900-01-01