| 刘明,朱恩领,王新雨,吴锦荣,杨保虾,张坤,罗文成.青海省牛苦头 M2356磁异常区综合找矿预测[J].矿产勘查,2025,16(5):1198-1209 |
| 青海省牛苦头 M2356磁异常区综合找矿预测 |
| Comprehensive prospecting prediction of the M2356 magnetic anomaly area in Niukutou, Qinghai Province |
| 投稿时间：2025-04-02 |
| DOI：10.20008/j.kckc.202505024 |
| 中文关键词: 综合物探异常解译 成矿预测 青海牛苦头中图分类号:P612文献标志码:A文章编号:1674-7801(2025)05-1198-12 |
| 英文关键词: interpretation of comprehensive geophysical anomalies metallogenic prognosis Niukutou deposit of Qinghai Province |
| 基金项目:本文受中国铜业重点科技项目(QHHX-KZ-JF2020-001)资助。 |
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| 中文摘要: |
| 本文以青海省牛苦头 M2356磁异常区矿权区内及外围找矿预测为目标，在深入认识矿区矿床地质特征的基础上，对研究区低空航磁(1∶10000低空航空磁测)、激电(1∶5000激电中梯剖面)、HMT(高频大地电磁)、 MPMT(多极化大地电磁法)资料进行综合解译，研究含矿地质体反映的综合物探异常信息，对比矿区深部与外围物探综合异常信息。结果表明，研究区岩矿石物性差异明显，与矿体有关的地质体与高磁异常具有良好的吻合性，同时其高极化率、低电阻率特征，是寻找深部盲矿体的重要地球物理找矿标志。结合矿区地球物理找矿标志及成矿规律，对牛苦头 M2356磁异常区深部及外围进行靶区优选和找矿预测。研究成果对青海祁漫塔格成矿带同类型矽卡岩型铅锌矿床矿产勘查工作具有重要的推动和示范作用。 |
| 英文摘要: |
| The goal of this paper is to predict mineral deposits within and around the M2356 magnetic anomalyzone of Niukutou ore district in Qinghai Province. Based on a deep understanding of the geological characteristics ofthe deposit, a comprehensive interpretation of low altitude aeromagnetic(1∶10000 low altitude aeromagnetic sur. vey), induced polarization(1∶5000 induced polarization gradient profile), HMT (high-frequency magnetotelluric), and MPMT (multipolar magnetotelluric method) data in the study area was conducted, study the comprehensive geo.physical anomaly information reflected by ore bearing geological bodies, and compare the comprehensive geophysi.cal anomaly information of deep and peripheral ore district. Research has shown that there are significant differ.ences in the physical properties of rocks and ores in the study area, and the geological bodies related to the ore bodyhave good consistency with high magnetic anomalies. At the same time, they exhibit high polarizability, and low re.sistivity characteristics, which are important geophysical prospecting indicators for searching for deep blind ore bod.ies. Combined with geophysical prospecting indicators and the metallogeny of the ore district, target area optimiza.tion and prospecting prediction were carried out for the deep and peripheral parts of the Niukutou M2356 magneticanomaly area, which has important promotion and demonstration effects on the mineral exploration of similar skarntype Pb-Zn deposits in the Qimantag metallogenic belt in Qinghai Province. |
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