地学前缘 ›› 2010, Vol. 17 ›› Issue (2): 209-221.

• 论文 • 上一篇    下一篇

内蒙古柳坝沟金矿床原生晕地球化学特征及深部成矿远景评价

章永梅, 顾雪祥, 程文斌, 董树义, 景亮兵, 王立强, 张岩   

  1. 1中国地质大学(北京) 地质过程与矿产资源国家重点实验室, 北京 100083
    2成都理工大学 地球科学学院, 四川 成都 610059
    3武警黄金部队第二支队, 内蒙古 呼和浩特 010010
  • 收稿日期:2009-06-23 修回日期:2009-12-31 出版日期:2010-03-15 发布日期:2010-04-05
  • 通讯作者: 顾雪祥。Email:xuexiang_gu@cugb.edu.cn
  • 作者简介:章永梅(1984—),女,博士研究生,矿床地球化学专业。
  • 基金资助:

    国家自然科学基金项目(40772060);国家重点基础研究发展计划“973”项目(2009CB42100301);长江学者和创新团队计划;高等学校学科创新引智计划(B07011);中国人民武装警察部队科研项目

The geochemical features of primary halo and the evaluation of deep mineralization prospect of Liubagou gold deposit, Inner Mongolia.

ZHANG  Yong-Mei, GU  Xue-Xiang, CHENG  Wen-Bin, DONG  Shu-Xi, JING  Liang-Bing, WANG  Li-Jiang, ZHANG  Yan   

  1. 1State Key Laboratory of Geological Process and Mineral Resources, China University of Geosciences (Beijing), Beijing 100083, China
    2College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China
    3No2 Gold Geological Party of CAPF,  Huhhot 010010, China
  • Received:2009-06-23 Revised:2009-12-31 Online:2010-03-15 Published:2010-04-05
  • Supported by:

    章永梅(1984—),女,博士研究生,矿床地球化学专业。

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摘要：

文中系统论述了柳坝沟金矿床的多金属元素原生晕地球化学特征,运用多元统计方法,结合地球化学各参数信息,勾勒出矿区原生晕异常形态,建立了元素轴向分带序列,探讨金矿床剥蚀程度并建立了原生晕叠加模型。认为柳坝沟金矿床西段头尾晕共存,Sb、Bi反分带,显示出多阶段叠加成矿的特点,是下部有盲矿体存在的反映;东段基本属正向分带序列,地球化学参数较强的波动,可能预示着深部有盲矿体存在。313号脉西段矿体遭受一定剥蚀,矿段中段和东段遭受轻微剥蚀。综合分析推断西段深部矿化远景较好,中段较好异常分布在海拔高度1 400 m以上的较浅部位,东段深部前景最佳;为矿区深部找矿提供了重要依据。

关键词: 原生晕, 深部成矿远景评价, 柳坝沟金矿床, 内蒙古

Abstract:

The geochemical features of primary halo of Liubagou gold deposit are systematically discussed in the paper, using multivariate statistical methods combined with geochemical parameters information; the anomalous features of primary halo are outlined and the axial zoning sequence of elements are established; the extent of denudation is analyzed and the primary halo superimposed model is built. In the western part of Liubagou gold deposit, the front elements are coexistent with the rear elements, and the antizoning of Sb and Bi shows the characteristics of superposition of multistage mineralization, reflecting the existence of blind ore bodies. In the eastern part, the axial zoning sequence is basically normal; the strong fluctuations of geochemical parameters indicate that the blind ore bodies may exist there. While in terms of denudation, the western part ore bodies of the No313 vein has undergone relatively strong erosion, the middle and eastern part have undergone minor denudation. According to the results mentioned above, we predicted that a good mineralization perspective exists in the western part; that for the middle part, the anomalous area is at the elevation of above 1400 m; and that the eastern part is of the best prospect. This study provides important evidence for deep prospecting in the mining district.

Key words:  primary halo, evaluation of deep mineralizing prospect, Liubagou gold deposit, Inner Mongolia

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