亚东—格尔木地学断面区域磁异常数据处理与地体划分 |
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REGIONAL MAGNETIC DATA PROCESSING AND TERRANE DIVIDING IN THE AREA OF THE GEOSCIENCE TRANSECT FROM YADONG TO GOLMUD |
This paper introduces the data processing results of the aeromagnetic anomalies over an area about one million square kilometres in Qinghai-Xizang 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 magnetic susceptibility mapping, long-wave component extracting, direction filtering and digit image processing. Based on the processing results, the distribution 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. |
YU Qin-fan,LOU Hai,SUN Yun-sheng,LI Qing-xuan,Lü Qing-tian.1990.REGIONAL MAGNETIC DATA PROCESSING AND TERRANE DIVIDING IN THE AREA OF THE GEOSCIENCE TRANSECT FROM YADONG TO GOLMUD[J].Acta Geoscientica Sinica,11(2):174-182. |
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