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黄金科学技术 ›› 2015, Vol. 23 ›› Issue (2): 28-37.doi: 10.11872/j.issn.1005-2518.2015.02.028

• 矿产勘查与资源评价 • 上一篇    下一篇

黔西南赖子山背斜东南缘卡林型金矿地质地球化学特征与成矿预测

闫俊1,夏勇1,谭亲平1,王泽鹏2,谢卓君1,王景腾2,张洪信2   

  1. 1.中国科学院地球化学研究所,贵州  贵阳   550002;
    2.贵州省地质矿产勘查开发局117地质大队,贵州  贵阳   550018
  • 收稿日期:2014-10-13 修回日期:2014-11-28 出版日期:2015-04-30 发布日期:2015-08-06
  • 通讯作者: 夏勇(1960-),男,贵州贵阳人,研究员,从事矿床成矿远景及预测研究工作。 E-mail:xiayong@vip.gyig.ac.cn
  • 作者简介:闫俊(1989-),女,陕西渭南人,硕士研究生,从事卡林型金矿床成矿远景及预测研究工作。xiao127721@sina.com
  • 基金资助:

    中国科学院矿床地球化学国家重点实验室“十二五”项目群课题“贵州卡林型金矿床‘攻深找盲’理论、方法和示范”(编号:SKLODG-ZY125-01)资助

Geological and Geochemistry Characteristics and Metallogenic Predition of Carlin-type Gold Deposit in the Southeast Margin of Laizishan Anticline,Southwest of Guizhou Province

YAN Jun1,XIA Yong1,TAN Qinping1,WANG Zepeng2,XIE Zhuojun1,WANG Jingteng2,ZHANG Hongxin2   

  1. 1.Institute of Geochemistry Chinese Academy of Sciences,Guiyang   550002,Guizhou,China;
    2.No.117 Team of Geology and Mineral Exploration Bureau of Guizhou, Guiyang   550018,Guizhou,China
  • Received:2014-10-13 Revised:2014-11-28 Online:2015-04-30 Published:2015-08-06

摘要:

黔西南赖子山背斜东南缘卡林型金矿(化)区位于扬子准地台西南缘与右江造山带的衔接部位,和著名的烂泥沟超大型金矿产于同一背斜(赖子山背斜)上,是近年来黔西南重点勘查区域。本研究综合利用区域主要地质信息来优选找矿部位,确定找矿靶区,并对其资源量进行预测计算,从而起到指导找矿的作用。重点以成矿远景区地球化学特征研究为基础进行综合信息的成矿预测,结果表明,区域内NE向展布的赖子山背斜及分布在背斜两翼与之平行的对冲式逆冲断层对成矿极为有利。另外,利用土壤地球化学测量方法研究异常元素之间的分异程度及其与金矿化的关系,能够确定有利成矿元素特征。将Au、As、Sb、Hg元素异常与构造特征相结合,可确定元素异常部位及其与金矿化的强弱关系,并结合方解石稀土及C、O同位素拟合的判别函数可初步判定与成矿有关的断裂带特征。将以上与成矿关系密切的因素整理进行资源量计算,结果表明该区卡林型金矿有较大的开采潜力。

关键词: 卡林型金矿, 地质特征, 元素异常与矿化, 成矿预测, 赖子山背斜, 黔西南

Abstract:

Laizishan anticline southeast carlin-type gold(mineralization) deposit in southwest of Guizhou Province is located in connection between the southwestern margin of Yangzi paralatform and Youjiang orogenic belt,is similar to famous super-large Lannigou gold mine,they are found in the same anticline that is Laizishan anticline,and becomes important exploration area in southwest Guizhou region in recent years.We can point out the prospective areas,favorable positions and confirm target regions and calculate resources by the method of superposition comprehensive geological and geochemistry information in the study.Importantly,based on the geochemistry characteristics of prospecting zone to apply in the method,we get some information:Laizishan anticline of north-east and ramp type thrust fault that distributed in limbs of anticline and parallel anticline,those structures are good for carlin-type gold mineralization;additional,the soil geochemical characteristics contain the level of differentiation of anomalous elements and how to influence gold mineralization;in the aspect of tectonic geochemistry,elementary anomalies of Au,As,Sb,Hg and structural characteristics are combined to determine location of anomalies,relationships elements and gold mineralization;REE and carbon,oxygen isotopes of calcites can compose a discriminant that can show characteristics of fault belts that relate to ore-forming;above all,we can find out that Laizishan anticline southeast carlin-type gold (mineralization) deposit has great potential by the result of calculating resources.

Key words: carlin-type gold deposit, geological characteristics, elementary anomalies and mineralization, metallogenic prediction, Laizishan anticline, southwest of Guizhou Province

中图分类号: 

  • P618.51
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