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小兴安岭成矿带岩(矿)石磁化率特征分析及应用
引用本文:祁程,蔡文军,田宇.小兴安岭成矿带岩(矿)石磁化率特征分析及应用[J].矿产勘查,2017,8(2):272-281.
作者姓名:祁程  蔡文军  田宇
作者单位:核工业航测遥感中心,石家庄 050002;国家铀资源地球物理勘查技术中心重点实验室, 石家庄 050002,核工业航测遥感中心,石家庄 050002;国家铀资源地球物理勘查技术中心重点实验室, 石家庄 050002,核工业航测遥感中心,石家庄 050002;国家铀资源地球物理勘查技术中心重点实验室, 石家庄 050002
基金项目:中国地质调查局项目(编号:12120110087007、1212011220560)资助。
摘    要:岩(矿)石磁性差异是进行航磁资料地质解释的重要依据。为全面了解小兴安岭成矿带岩(矿)石的磁性特征,项目组连续两年深入该区,实测3236个物性点,取得有效磁化率数据96 930个。文章综合前人资料,研究了该区岩(矿)石磁化率的分布情况,分析总结了各岩性的磁性特征,结果表明基性、超基性岩浆岩是引起该区强磁异常的主要因素。在此基础上,对区域磁场进行划分,新圈定隐伏岩体306处,划定火山岩367片,优选重点航磁异常709个,对航磁异常进行综合推断解释。

关 键 词:小兴安岭成矿带  磁化率  岩性填图  异常解释
收稿时间:2016/6/12 0:00:00

Analysis of magnetic susceptibility features of rocks and ores in Xiaoxingan mountain metallogenic belt and application
QI Cheng,CAI Wen-jun and TIAN Yu.Analysis of magnetic susceptibility features of rocks and ores in Xiaoxingan mountain metallogenic belt and application[J].Mineral Exploration,2017,8(2):272-281.
Authors:QI Cheng  CAI Wen-jun and TIAN Yu
Institution:Airborne Survey and Remote Sensing Center of Nuclear Industry, Shijiazhuang 050002;Key Laboratory of Geophysical Exploration Technology Center for Uranium Resource, Shijiazhuang 050002,Airborne Survey and Remote Sensing Center of Nuclear Industry, Shijiazhuang 050002;Key Laboratory of Geophysical Exploration Technology Center for Uranium Resource, Shijiazhuang 050002 and Airborne Survey and Remote Sensing Center of Nuclear Industry, Shijiazhuang 050002;Key Laboratory of Geophysical Exploration Technology Center for Uranium Resource, Shijiazhuang 050002
Abstract:The differences of magnetic property of rocks and ores are important basis of geological interpretation of aeromagnetic data. In order to fully understand magnetic characteristics of rocks and ores in Xiaoxingan mountain metallogenic belt, the field magnetic measurement was conducted for two years and a large amount of magnetic susceptibility data were obtained. In combination with previous data, the distribution of magnetic susceptibility of rocks and ores was analyzed, the results showed that basic and ultra-basic magmatic rocks are the main factor causing strong magnetic anomalies in this area. Based on the magnetic susceptibility data, 306 concealed or semi-concealed intrusive bodies were identified, 367 volcanic rock areas were delineated, and 709 key aeromagnetic anomalies were delineated, and integrated geological interpretation was conducted for those aeromagnetic anaomlaies.
Keywords:Xiaoxingan mountain metallogenic belt  magnetic susceptibility  lithologic mapping  anomaly interpretation
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