| 张平.综合物探方法在内蒙古张点浅覆盖区地质调查中的应用[J].矿产勘查,2025,16(5):1178-1185 |
| 综合物探方法在内蒙古张点浅覆盖区地质调查中的应用 |
| Application of integrated geophysical methods in geological survey of Zhangdian shallow overburden area, Inner Mongolia |
| 投稿时间：2025-03-29 |
| DOI：10.20008/j.kckc.202505022 |
| 中文关键词: 浅覆盖区 浅成低温热液金矿床 石英脉 磁法 激电中图分类号:P631.2 P631.3文献标志码:A文章编号:1674-7801(2025)05-1178-08 |
| 英文关键词: shallow overburden areas epithermal gold deposits quartz veins magnetic method induced polar.ization (IP) method |
| 基金项目:本文受中国地质调查局项目(DD20240061)资助。 |
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| 中文摘要: |
| 张点研究区位于大杨树盆地西缘，受火山断陷盆地边缘断裂控制，区域构造活动强烈，为浅成低温热液型金矿的形成提供了有利条件。以往矿产调查在区内发现了具有工业价值的矿化露头，但地表覆盖严重制约了找矿进展。针对这一问题，本研究采用高精度磁法与激电测量相结合的综合物探方法，通过数据处理与异常解释，成功揭示了隐伏控矿断裂及矿化蚀变带的空间展布特征。经钻探工程验证，证实了物探异常与隐伏地质体及矿化体的对应关系，为深部矿产资源勘查提供了可靠的科学依据。研究成果深化了对区内成矿规律的认识，为类似地质背景地区的矿产勘查工作提供了可借鉴的物探技术方案，对指导隐伏矿床勘查实践具有一定参考价值。 |
| 英文摘要: |
| Zhangdian study area is located on the western margin of the Dayangshu Basin, is controlled byfaults along the edges of a volcanic subsidence basin. Intense regional tectonic activity has created favorable condi.tions for the formation of epithermal gold deposits. Previous mineral surveys identified mineralized outcrops of in.dustrial value, but exploration progress has been severely restricted by the presence of shallow overburden areas. Toaddress this challenge, this study applied an integrated geophysical approach combining high-resolution magneticsurveys and induced polarization measurements. Through data processing and anomaly interpretation, the spatial distribution of concealed ore-controlling faults and mineralized alteration zones was successfully delineated. Drill.ing verification confirmed the correspondence between geophysical anomalies and concealed geological and ore bod.ies, providing a reliable scientific basis for deep mineral resource exploration. These results enhance the under.standing of gold metallogenesis in the area and offer a practical geophysical method for mineral exploration in re.gions with similar geological settings, providing valuable guidance for concealed deposit exploration. |
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