哈达门沟金矿蚀变分带的高光谱分析及找矿意义

徐大兴; 杨彪; 邵兆刚; 柳长峰; 王达; 王建平

doi:10.6046/zrzyyg.2022072

哈达门沟金矿蚀变分带的高光谱分析及找矿意义

1.中国地质科学院,北京 100037；

2.北京大学地球与空间科学学院,北京 100871；

3.呼和浩特自然资源综合调查中心,呼和浩特 010010；

4.成都理工大学地球科学学院,成都 610059；

5.中国地质大学(北京)海洋学院,北京 100083；

6.中国地质大学(北京)地球与科学资源学院,北京 100083

基金项目:
中国地质调查局地质调查项目“内蒙古哈达门沟金矿岩金普查”(DD20191017)

“河西走廊—阿尔金盆山结合带深部地质调查”(20221643-5)

及国家自然科学基金项目“内蒙古中东部毛登—前进场早石炭世强过铝花岗岩带地球化学成因及其构造意义”(41702054)

详细信息

作者简介: 徐大兴(1996-),男,博士研究生,构造地质学专业。Email: xudax@stu.pku.edu.cn。

中图分类号: TP79

收稿日期: 2022-03-07

修回日期: 2023-03-15

刊出日期: 2023-03-20

A hyperspectral analysis of alteration zoning in the Hadamengou gold deposit and its significance for ore prospecting

1. Chinese Academy of Geological Sciences, Beijing 100037, China；

2. School of Earth and Space Sciences, Peking University,Beijing 100871, China；

3. Hohhot Natural Resources Comprehensive Survey Center, Hohhot 010010, China；

4. School of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China；

5. School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China；

6. School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China

Received Date: 07 March 2022

Revised Date: 15 March 2023

Publish Date: 20 March 2023

摘要

摘要: 内蒙古包头市哈达门沟金矿是乌拉山—大青山成矿带上重要的大型金矿床,具有很大的找矿潜力。为了充分发挥遥感技术在地质找矿中的应用,对哈达门沟金矿进行了不同遥感数据的矿化蚀变信息提取。依据矿区蚀变矿物光谱特征,利用Landsat8 OLI、ASTER、WorldView-3遥感数据,采用主成分分析确定了哈达门沟金矿Landsat8 OLI和WorldView-3提取铁染、ASTER和WorldView-3提取羟基、ASTER提取碳酸盐化的综合处理方法。通过蚀变异常信息的分布规律,叠加矿区地质图分析,成功圈定了2条蚀变带,并且结合控矿构造研究的成果,认为哈达门沟金矿成矿热液活动与构造关系密切。研究可以为乌拉山—大青山成矿带寻找同种类型的金矿床提供参考,对哈达门沟金矿外围找矿有一定的指导意义。
- 哈达门沟金矿 /
- 蚀变异常信息 /
- 综合处理方法 /
- 控矿构造 /
- 外围找矿
Abstract: The Hadamengou gold deposit in Baotou City, Inner Mongolia is an important large gold deposit in the Wulashan-Daqingshan metallogenic belt, with great prospecting potential. To give full play to remote sensing technology in geological prospecting, this study extracted the mineralization alteration information of the Hadamengou gold deposit from remote sensing data of different satellites. Based on the spectral characteristics of alteration minerals in the mining area, this study proposed a comprehensive processing method that extracted iron staining information from the Landsat8 OLI and WorldView-3 data, hydroxyl information from the ASTER and WorldView-3 data, and carbonation information from the ASTER data through principal component analysis. As a result, two alteration zones were delineated based on the distribution patterns of alteration anomalies and the geological map analysis of the mining area. By combining the study results of the ore-controlling structures, it is believed that the metallogenic hydrothermal processes of the Hadamengou gold deposit were closely related to structures. This study can provide a reference for the prospecting for the same type of gold deposits in the Wulashan-Daqingshan metallogenic belt and can guide the peripheral prospecting of the Hadamengou gold deposit.
- Hadamengou gold deposit /
- alteration anomaly /
- comprehensive processing method /
- ore-controlling structure /
- peripheral prospecting

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哈达门沟金矿蚀变分带的高光谱分析及找矿意义

作者简介: 徐大兴(1996-),男,博士研究生,构造地质学专业。Email: xudax@stu.pku.edu.cn。

A hyperspectral analysis of alteration zoning in the Hadamengou gold deposit and its significance for ore prospecting

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