首页 > 过刊浏览>2023年第97卷第5期 >1683-1700. DOI:10.19762/j.cnki.dizhixuebao.2023009.
PDF HTML阅读 XML下载 导出引用 引用提醒
深穿透地球化学勘查技术对胶东冲积土覆盖区隐伏金矿的勘查指示
作者:
作者单位:

1. 自然资源部地球化学探测重点实验室,中国地质科学院地球物理地球化学勘查研究所,河北廊坊,065000;2. 联合国教科文组织全球尺度地球化学国际研究中心,河北廊坊,065000;3. 中国地质大学(北京)地球科学与资源学院,北京,100083;4. 自然资源部金矿成矿过程与资源利用重点实验室,山东省地质科学研究院,山东济南,250013

作者简介:

刘汉粮,男,1985年生。在读博士,高级工程师,主要从事勘查地球化学研究。E-mail: lhanliang@mail.cgs.gov.cn。


Indication of deep-penetrating geochemistry for hidden gold deposit in alluvial soil covered area in Jiaodong
Author:
Affiliation:

1. MNR Key Laboratory of Geochemical Exploration, CAGS Institute of Geophysical and Geochemical Exploration, Langfang, Hebei 065000, China;2. UNESCO International Centre on Global-scale Geochemistry, Langfang, Hebei 065000, China;3. School of Earth and Resources, China University of Geosciences (Beijing), Beijing 100083, China;4. MNR Key Laboratory of Gold Mineralization Processes and Resources Utilization, Shandong Institute of Geological Sciences, Jinan, Shandong 250013, China

  • 摘要
    • | |
  • 访问统计
    • |
  • 参考文献
    • |
  • 相似文献
    • |
  • 引证文献
    • | |
  • 文章评论
    摘要:

    胶东是当今世界仅有的探明金资源储量超过5000 t的三个金矿省之一,随着地质勘查程度的不断提高,其找矿方向逐渐由浅表矿转向覆盖区深部隐伏矿。土壤微细粒分离技术是一种能反映深部异常信息的深穿透地球化学勘查技术,已在多种景观区取得成功试验案例。本文选择胶东冲积土覆盖区曲家隐伏金矿及其外围开展土壤微细粒分离技术的勘查试验。结果表明:相比于中国土壤、山东省土壤、烟台市土壤背景值,研究区内Au元素高度富集,区域浓集系数高达2.88,金、银等地球化学异常范围与已知隐伏矿体位置具有很好的对应关系,能够互相印证,且与钻孔原生晕地球化学信息有继承关系。异常形成机理是:深部成矿物质以呈类气体性质的纳米颗粒形式沿断层、地层接触面等宏观裂隙和围岩中的微裂隙等通道在多营力接续作用下迁移至地表,并被地表微细粒土壤捕获形成矿化异常。土壤微细粒分离技术对隐伏金矿的勘查指示取得理想效果,可以应用于胶东冲积土覆盖区地球化学找矿勘查。

    Abstract:

    Jiaodong is one of the three gold provinces with proven gold reserves of more than 5000 tons. With the continuously increasing degree of geological exploration, there are fewer and fewer surface and shallow deposits, and the deep and covered areas have become the key focus of ore prospecting in this area. The fine-grained soil prospecting method, a deep-penetrating geochemistry method that can recognize the anomaly information coming from the deep orebodies, has been successfully used for mineral exploration in the covered areas. In this paper, the fine-grained soil prospecting method was carried out in the Qujia concealed gold deposit and its periphery area which is located in the Laizhou City, Shandong Province and covered by alluvial soil. The results show that: ① the content of Au is significantly higher than that of Chinese, Shandong Province, and Yantai City soils, and the regional concentration coefficient is as high as 2.88, indicating that Au is highly enriched in the study area; ② the range of Au and Ag geochemical anomalies has a good corresponding relationship with the known hidden orebodies, which can confirm each other, and have an inheritance relationship with the geochemical information of the primary halo of the borehole. A potential genesis mechanism of the anomalies is as follows: the deep ore-forming materials migrate to the surface under the action of multi-agent relay in the form of nanoparticles with gas-like properties along macro-fractures such as faults and stratum contact surfaces and micro fractures in surrounding rocks, and are captured by surface fine-grained soil to form mineralization anomalies. Satisfactory results have been obtained in the validity experiments of fine-grained soil prospecting method, which can be applied to geochemical exploration in the alluvium-covered area of Jiaodong.

    参考文献
    相似文献
    引证文献
引用本文

刘汉粮,王学求,张必敏,张宝匀,王强,杨德平,熊玉新,周建.2023.深穿透地球化学勘查技术对胶东冲积土覆盖区隐伏金矿的勘查指示[J].地质学报,97(5):1683-1700.
LIU Hanliang, WANG Xueqiu, ZHANG Bimin, ZHANG Baoyun, WANG Qiang, YANG Deping, XIONG Yuxin, ZHOU Jian.2023. Indication of deep-penetrating geochemistry for hidden gold deposit in alluvial soil covered area in Jiaodong[J]. Acta Geologica Sinica,97(5):1683-1700.

复制
分享
文章指标
  • 点击次数:187
  • 下载次数: 660
  • HTML阅读次数: 185
  • 引用次数: 0
历史
  • 收稿日期:2022-03-14
  • 在线发布日期: 2023-07-13
您是第 位访问者
主管单位：中国科学技术协会
主办单位：中国地质学会
地址：北京市西城区百万庄大街26号
电话：010-68999025

京公网安备 11000002000088号 | 京ICP备11041704号
地质学报 ® 2025 版权所有