| 王健,黄伟山,陈思源,饶东平,吕晓强,刘洋.震旦三维激电系统在塞尔维亚 Timok成矿带“斑岩+Manto型”铜金矿床的找矿应用[J].矿产勘查,2025,16(5):1111-1120 |
| 震旦三维激电系统在塞尔维亚 Timok成矿带“斑岩+Manto型”铜金矿床的找矿应用 |
| The application of the aurora 3D IP system in the porphyry and Manto-type copper-gold deposits in Timok metallogenic belt, Serbia |
| 投稿时间：2025-03-29 |
| DOI：10.20008/j.kckc.202505015 |
| 中文关键词: 三维激电 震旦三维激电系统 Timok成矿带 斑岩型铜金矿中图分类号:P319.3文献标志码:A文章编号:1674-7801(2025)05-1111-10 |
| 英文关键词: 3D IP aurora system Timok metallogenic belt porphyry-type copper-gold deposit |
| 基金项目:本文受成矿系统的三维探测与找矿靶区圈定项目(2022YFC2903603-2)资助。 |
|
| 摘要点击次数: 767 |
| 全文下载次数: 1174 |
| 中文摘要: |
| 在塞尔维亚 Timok成矿带勘探中，为了发现深部隐伏斑岩铜金矿，本文根据其物性特征，采用了紫金震旦三维激电系统，进行三维激发极化(IP)勘探，采取偏移单极-偶极分布式观测装置布置发射和接收电极，最大供电电流 30 A，240台接收机以 200 m×100 m网度布设，对每个发射源均同步全波形采集数据，通过对实测数据体的三维反演，结果显示，深部存在规模大、延伸深(垂向延深超 1400 m未封闭)的低电阻率、高极化率异常体，其空间展布与验证钻孔揭露的蚀变斑岩及硫化物矿化体高度吻合，验证钻孔 ZK01在预测的 1318 m深度揭露到块状—半块状硫化物矿体(视厚度 63 m，铜品位 1.69%，金品位 0.44×10-6)。成功案例说明自主研发的紫金震旦三维激电系统，因其大功率大电流长偏移距全方位激励，加之特殊的去噪处理反演方法，勘探深度可达千米。 |
| 英文摘要: |
| In the exploration of Timok mineralization belt in Serbia, in order to discover the deep concealedporphyry copper-gold deposit, according to its physical property characteristics, Zijin Aurora 3D IP system wasused to conduct 3D induced polarization (IP) exploration. The transmitting and receiving electrodes were arranged by offset monopole-dipole distributed observation device, with a maximum power supply current of 30 A. 240 re.ceivers were arranged in a 200 m×100 m grid. Full waveform data were collected synchronously for each transmit.ting source. Through 3D inversion of the measured data body, the results showed that there were large-scale anddeep (vertical extension of more than 1400 meters without closure) low-resistivity and high-polarizability anomaliesin the deep. Their spatial distribution was highly consistent with the altered porphyry and sulfide mineralization re.vealed by the verification borehole. The verification borehole ZK01 revealed massive-semi-massive sulfide ore bod.ies (apparent thickness of 63 meters, copper grade of 1.69%, gold grade of 0.44×10-6) at the predicted depth of 1318meters. The successful case shows that the independently developed Zijin Aurora 3D IP system can explore to adepth of more than one kilometer due to its high-power, high-current, long-offset, all-round excitation, and specialdenoising and inversion methods. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |