华北板块北缘东段拼贴带地质—地球物理特征

华北板块北缘东段（吉林省境内）地质构造的研究历来为学者所关注,研究成果颇多。笔者通过最新的地质－地球物理资料的分析研究,认为：该带重磁场的总体特征,即近乐西向展布的地球物理场态,被北东向或与之相联系的其它方向的重磁场带或梯度带分隔、切割、和改造;区域构造框架－－古东西构造,为中生代北东向等构造改造、包容及其它各复合关系,具有较高的一致性。通过对该带的５个构造重磁场区段之一的富尔河区段的剖析,确证生

The geologic - geophysical characteristics of matching zone on the east part of northern margin of North China platform

The geologists are concerned follow with interest the research for geological structure on the east part of northern margin of North China platform (the part of Jilin province), and many results were achieved. Through analysis and research of the latest geologic - geophysical data, the characteristics of the magnetic field in this belt show that the EW - trending geophysicalfield is separated, cut, disturbed and transformed by the magnetic fields and gradient belts of NE -trending or other related directions. They are in high accordance with the regional structural framework - aleostructure of WE striking and with the Mesozoic structural reworking of EN striking etc,. Through the analysis for the Fuerhe part, one of 5 structural gravity magnetic fields in this belt. We confirm that the internal structure of gravity magnetic field and the spatial assciation of geologic structural essential elements - fault and faulted mass assemblage have a correlation. According to the composite profile of gravity field and the interpretative results of the deep structures, the relationship between the superstructure and deep - seated structure is discussed. A "the sledge type" structural model is proposed, indicating a great significance for the further research.