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

徐明钻, 黄岩, 刘建生, 刘建东, 梁胜跃, 陈峰, 王军成

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

Ming-Zuan XU, Yan HUANG, Jian-Sheng LIU, Jian-Dong LIU, Sheng-Yue LIANG, Feng CHEN, Jun-Cheng WANG

图6 工作区铜多金属矿靶区优选和评价成果 1—第四纪;2—古近系玄武岩;3—古近系砂岩、砾岩、泥岩;4—二叠系页岩、杂砾岩;5—二叠系砂泥岩 ;6—二叠系页岩;7—二叠系粉砂岩、页岩;8—二叠系层状杂砂岩、粉砂岩;9—二叠系层状泥岩、板岩;10—二叠系层状泥岩、砂泥岩、砂岩、杂砂岩;11—石炭系杂砂岩、砂页岩互层;12—凝灰质杂砂岩、副砾岩;13—凝灰质副砾岩;14—凝灰质砂砾岩;15—碳酸盐化凝灰质砂岩、页岩;16—流纹状英安质凝灰岩;17—气孔状绿泥石化英安质-安山质凝灰岩;18—流纹状凝灰岩、次安山岩、流纹岩;19—流纹状凝灰岩,含碎石;20—VTEM工作区;21—已知矿点;22—推测断层;23—实测断层;24—航电异常编号;25—第20道航电异常(dB/dt);26—第25道航电异常(dB/dt);27—第30道航电异常(dB/dt);28—第35道航电异常;29—航磁异常编号; 30—找矿靶区; 31—水系

Fig.6 Final map of copper multi-metals minerals targeting assessment and optimization in working area 1—Quaternary;2—Paleogene basalt;3—Paleogene sandstone, conglomerate & mudstone;4—Permian shale & conglomerate; 5—Permian sand-mudstone; 6—Permian shale; 7—Permian siltstone & shale; 8—Permian lamellar conglomerate & siltstone; 9—Permian lamellar mudstine & slate; 10—Perimian lamellar mudstone, sand-mudstone, sandstone & conglomerate;11—carboniferous conglomerate & sandstone-shale;12—tuffaceous conglomerate & paraconglomerate;13—tuffaceous paraconglomerate;14—tuffaceous sandstone-conglomerate;15—carbonatized tuffaceous sandstone & shale;16—welded dacitic tuff;17—fumarolic dacitic-andesitic tuff;18—welded tuff, paraandesite & rhyolite;19—welded tuff with rubble; 20—VTEM working area;21—known mineralized occurrence;22—inferred fault;23— measured fault;24—numbers of electronic anomalies;25— channel 20 electronic anomalies (dB/dt);26—channel 25 electronic anomalies (dB/dt);27—channel 30 electronic anomalies (dB/dt);28—channel 35 electronic anomalies (dB/dt);29—numbers of magnetic anomalies; 30—metallogenic targets; 31—stream