摘要
西伯利亚与华北两大板块之间晚古生代缝合带的位置在那里?多年来一直是地学界热烈讨论的重要课题。本文通过对区域地质及区域地球物理资料(重磁的综合研究,探讨了西伯利亚板块南缘、华北板块北缘晚古生代活动陆缘带的位置,并提出了两大古板块之间存在着复合型缝合带的新认识。
Where the kilometers suturc zone between the Siberian and North China plates is located?The question has been argued for many years among the geologists.On the basis of rgional geological and geophysical data,the paper discusses the features of the Paleozoic active margins in the north margin of the North China plate and south margin of the Siberian plate,and suggests that there is a composite suture zone between that plates.The North China plate moved northward and the oceanic crust subducted under the active margin of the North China plate in the late of the early Permian.The subduction led that a more than thousand kilometers long and ten to hundred kilometers wide granite zone of I—type and S—type was formed.
