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现代地质 ›› 2018, Vol. 32 ›› Issue (04): 655-666.DOI: 10.19657/j.geoscience.1000-8527.2018.04.03

• 矿床学与地球化学 • 上一篇    下一篇

内蒙古北山额勒根乌兰乌拉一带土壤测量地球化学特征及找矿方向

张善明1,2(), 兰生科2, 贺中银2, 韩志敏2, 陈强2, 王永晖2   

  1. 1.中国地质大学(北京) 地球科学与资源学院,北京 100083
    2.内蒙古自治区第八地质矿产勘查开发院,内蒙古 乌海 016000
  • 收稿日期:2017-06-22 修回日期:2017-11-01 出版日期:2018-08-10 发布日期:2018-09-19
  • 作者简介:张善明,男,博士研究生,高级工程师,1983年出生,矿产普查与勘探专业,主要从事区域矿产地质调查工作。Email:shanming.zhang@163.com
  • 基金资助:
    内蒙古自治区国土资源厅项目(NMKD2014-10)

Soil Geochemical Characteristics and Prospecting Direction in Elegenwulanwula Area of Beishan District,Inner Mongolia

ZHANG Shanming1,2(), LAN Shengke2, HE Zhongyin2, HAN Zhiming2, CHEN Qiang2, WANG Yonghui2   

  1. 1. School of Earth Sciences and Resources,China University of Geosciences,Beijing 100083,China
    2. The Eighth Branch of Inner Mongolia Bureau of Geology and Mineral Resources Exploration & Development, Wuhai, Inner Mongolia 016000,China
  • Received:2017-06-22 Revised:2017-11-01 Online:2018-08-10 Published:2018-09-19

摘要:

研究区位于内蒙古北山北带,成矿地质条件优越,1∶20万水系沉积物测量异常明显,且分布有额勒根乌兰乌拉斑岩型钼(铜)矿。以1∶5万土壤地球化学测量成果为依据,以地质认识为基础,研究了区内元素地球化学数据特征、地球化学场特征及综合异常特征。认为区内主成矿元素为Mo、Cu、Au,主要的控矿层位为咸水湖组火山岩段,成矿有利侵入体为石炭纪花岗闪长岩。划分出5种综合异常类型,其中与斑岩钼(铜)矿系统有关的综合异常和与奥陶系建造有关的综合异常是今后解剖找矿的重点。

关键词: 土壤测量, 地球化学场, 综合异常, 斑岩钼(铜)矿系统, 额勒根乌兰乌拉, 内蒙古

Abstract:

The study area is located in the north zone of Beishan Mt,where the ore-forming geological condition is favorable, and the anomalies of the 1∶200 000 stream sediment survey are outstanding. Meanwhile, the Elegenwulanwula porphyry Mo(Cu)deposit is also located in this area, where the 1∶50 000 soil geochemical survey has been conducted by the authors. Taking the soil geochemical data as the material and the geology cognition as the basis, this paper has studied the geochemical data characteristics, geochemical field characteri-stics and integrated anomalies characteristics. According to this study,the authors believe that Mo, Cu and Au are the main metallogenic elements in this area, the volcanic horizon of Xianshuihu Formation is the main meta-llogenic strata, and the Carboniferous granodiorite is the main metallogenic intrusion. All the integrated anomalies can be divided into five types, among which those related to the porphyry Mo(Cu)metallogenic system and Ordovician geological formation-structure are the key points for the future study and prospecting.

Key words: soil survey, geochemical field, integrated anomaly, porphyry Mo(Cu) metallogenic system, Elegenwulanwula, Inner Mongolia

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