【作者】 余钦范； 楼海； 孙运生； 李庆宣； 吕庆田；

【Author】 Yu Qinfan~(1) Lou Hai~(1) Sun Yunsheng~(2) Li Qingxuan~(2) Lu Qingtian~(2) (1)China University of Geoscience,Beijing; (2)Changchun College ot Geology

【机构】 中国地质大学； 长春地质学院；

【摘要】 本文首先介绍了航磁数据的预处理；介绍了视磁化率填图方法及对浅层、深层视磁化率进行了综合分析；进行了方向滤波及长波磁异常的分析处理；讨论了航磁数据图象处理及其有关问题；最后提出了地体划分意见：由5条边缘断裂分割成6个地体。更多还原

【Abstract】 This paper introduces the data processing results of the aeromagnetic anomalies over an area about one million square kilometres in Qinghai-Xi- zang plateau.Before processing,the aeromagnetic anomalies are normally recorrected based on the International Geomagnetic Reference Field(IGRF) in agreement with the demand of the International Lithosphere Geoscience Transect Project.The processing methods used here include apparent magne- tic susceptibility mapping,long-wave component extracting,direction filte- ring and digit image processing.Based on the processing results,the distri- bution of the fracture zones and the dividing of terranes in the processing area are discussed.Some fundamental information has been derived for the synthetical study of the geological belt from Yadong to Golmud.更多还原