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1 工作区地质概况 1—第四纪;2—古近纪玄武岩;3—古近纪砂岩、砾岩、泥岩;4—二叠纪页岩、杂砾岩;5—二叠纪砂泥岩 ;6—二叠纪页岩;7—二叠纪粉砂岩、页岩 ;8—二叠纪层状杂砂岩、粉砂岩 ;9—二叠纪层状泥岩、板岩 ;10—二叠纪层状泥岩、砂泥岩、砂岩、杂砂岩;11—石炭纪杂砂岩、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—碳酸盐岩凝灰质砂岩、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—水系

Fig.1 Geological conditions of working area 1—Quaternary;2—Paleogene basalt;3—Paleogene bandstone, 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—stream