| 航空时间域电磁法在澳大利亚新英格兰造山带铜多金属矿靶区优选与评价中的应用 |
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| 引用本文： | 徐明钻,黄岩,刘建生,刘建东,梁胜跃,陈峰,王军成.航空时间域电磁法在澳大利亚新英格兰造山带铜多金属矿靶区优选与评价中的应用[J].物探与化探,2019(2):298-307. |
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| 作者姓名： | 徐明钻 黄岩 刘建生 刘建东 梁胜跃 陈峰 王军成 |
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| 作者单位： | 江苏省地质勘查技术院 |
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| 基金项目： | 国土资源部2012年国外矿产资源风险勘查专项资金项目(201210A01000201) |
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| 摘 要： | 澳大利亚新英格兰造山带构造演化历史复杂,已知铜多金属矿床(点)众多,成矿条件较为优越,是实现铜多金属矿找矿突破的有利区域。通过以航空时间域电磁法测量为核心的工作手段,以航电、磁异常为基础,以"类比—求同"为靶区优选评价指导思想,对新英格兰造山带某探矿权内开展铜多金属矿靶区优选和评价工作。在该地形条件复杂的工作区内,快速、科学有效圈定并优选出铜多金属矿找矿靶区共计9处,其中Ⅰ类找矿靶区3处,Ⅱ类找矿靶区5处,Ⅲ类找矿靶区1处,为在境内外类似工作条件的地区快速有效开展铜多金属矿找矿靶区优选和评价工作提供了参考案例。
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| 关 键 词： | 新英格兰造山带 航空时间域电磁法 铜多金属矿 靶区优选与评价 VTEMPlus系统 |
The application of airborne time-domain electromagnetic method to the optimization and evaluation of copper and multi base-metals targets in New England Orogen,Australia |
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| XU Ming-Zuan,HUANG Yan,LIU Jian-Sheng,LIU Jian-Dong,LIANG Sheng-Yue,CHEN Feng,WANG Jun-Cheng.The application of airborne time-domain electromagnetic method to the optimization and evaluation of copper and multi base-metals targets in New England Orogen,Australia[J].Geophysical and Geochemical Exploration,2019(2):298-307. |
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| Authors: | XU Ming-Zuan HUANG Yan LIU Jian-Sheng LIU Jian-Dong LIANG Sheng-Yue CHEN Feng WANG Jun-Cheng |
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| Institution: | (Geological Exploration Technology Institute of Jiangsu Province, Nanjing 210049,China) |
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| Abstract: | The New England Orogen( NEO) is located in East Australia. Due to the numerous copper polymetallic deposits or ore spots and the complicated evolution history of tectonic activity,NEO shows the high exploration potential for copper polymetallic minerals,even large-sized deposits. The airborne electronic anomalies were delineated by airborne time-domain electromagnetic method. Based on the aerial electronic anomalies and using a method called " Seeking Common" with the known copper polymetallic ore spots,the authors performed the optimization and evaluation of copper polymetallic minerals in an exploration license within quite difficult topographic conditions for ground exploration in NEO. Using the airborne time-domain electromagnetic method,the authors rapidly and effectively determined and optimized nine copper polymetallic exploration targets. Those targets were classified into three levels: Level Ⅰ,Ⅱ,Ⅲ.Finally,and there were three,five and one targets for Level Ⅰ,Ⅱ,Ⅲ respectively. In a word,the work completed in this paper is expected to provide a referable case for rapidly and effectively conducting optimization and evaluation of copper polymetallic minerals in some special areas within difficult topographies for ground exploration both in China and abroad. |
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| Keywords: | New England Orogen airborne time-domain electromagnetic method copper polymetallic minerals targets optimization and evaluation Versatile Time-Domain Electromagnetic Plus(VTEMPlus) System |
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