An analysis of the application of high precision magnetic survey to the Qiongkuer iron deposit in Nilka County
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摘要: 为扩大新疆尼勒克县松湖铁矿后备储量资源,对尼勒克县松湖铁矿东南1∶5万化探异常进行了地面磁测工作,通过对磁测数据进行化极、延拓等处理,进一步了解了圈定的3处高磁异常体的空间分布及产状特征,利用二度半人机交互反演,拟合出矿体的埋深和形态,通过钻探验证发现了穹库尔铁矿。后期依据磁测反演成果在主矿段西侧植被覆盖区内发现了一定规模的隐伏矿体,为矿床勘探及资源量扩大提供了重要的地球物理依据。Abstract: In order to expand reserve resources of the Qiongkuer iron deposit in Nilka County,Xinjiang, the authors conducted surface magnetic survey for 1∶50 000 geochemical Hs?19 anomaly.Through such means as reduction to the pole and continuation,the spatial dis?tribution of attitude characteristics of three delineated high?magnetic anomalous bodies was detected;through two and a half dimensional interactive inversion,the buried depth and shape of the orebody were fitted;through drilling verification,the Qiongkuer iron deposit was discovered.At the late stage,a concealed orebody of certain size was found in the vegetation cover area on the western side of the main ore block according to the result of magnetic inversion,thus providing geophysical basis for the exploration of the deposit and the expan?sion of resource quantity.
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