摘要
总结了中朝-扬子板块碰撞结合带的边界划分的各类观点,分析了存在争议的原因以及研究的不足之处。通过对苏鲁造山带及黄海海区的重磁资料、周缘断裂特征、典型地震剖面等最新研究成果的收集整理,研究认为华北扬子板块的碰撞结合带应为苏鲁超高压变质带-千里岩隆起,结合带在陆地的北边界可能为五莲-青岛-牟平断裂;南边界为连云港-黄梅断裂;千里岩南缘断裂在印支期是一条千里岩超高压变质带折返的边界断裂,白垩纪以来反转为一条控制南黄海北部坳陷的大型边界断裂,并指出加强黄海海域重磁震资料的精细研究及海陆结合带的构造关系研究是进一步研究重点。
This study tries to summarize various standpoints on the Collision belts of Sino-Korean and Yan- gtze Plates, analyze the main discrepancies, based on the data of gravity and magnetic anomaly, character-istics of faults, and seismic profiles research progress on fault distribution in the area, and other research achievements of the Sulu HP-UHP metamorphism terrane were carefully reviewed. Upon the facts, we propose that the Collision belts of Sino-Korean and Yangtze Plates is same as the Sulu HP-UHP metamor- phism terrane-Qianliyan uplift. The collision belt is bounded by the Wulian-Qingdao-Muping fault in the north and the Lianyungan-Huangmei fault in the south. The Southern Qianliyan Fault was reversed to be a normal fault at Irate Cretaceous, and it controlled Cenozoic deposit of the Northern South Yellow Sea Ba- sin.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2014年第1期75-85,共11页
Marine Geology & Quaternary Geology
基金
国家自然科学基金项目(41106060)
国土资源部海洋油气资源与环境地质重点实验室开放基金项目(MRE201122)
关键词
中朝一扬子碰撞结合带
边界划分
黄海
Collision belts of Sino-Korean and Yangtze Plates
boundary
Tectonic link
Yellow Sea
