黄海盆地地质构造特征及其形成机制  

GEOLOGICAL FEATURES AND FORMING MECHANISM OF THE YELLOW SEA BASIN

作　　者：李慧君[1,2] 张训华[1,2] 牛树银[3] 于开宁[3] 孙爱群[3] 张建珍[3] 陈超[3] 

机构地区：[1]圈土资源部海洋油气与环境地质重点实验室,青岛26607l [2]青岛海洋地质研究所,青岛266071 [3]石家庄经济学院资源学院,石家庄050031

出　　处：《海洋地质与第四纪地质》2011年第5期73-78,共6页Marine Geology & Quaternary Geology

基　　金：国家自然科学基金项目(40872137);青岛海洋地质研究所(油气专项)项目资助

摘　　要：黄海中—新生代盆地是一个发育在前印支期基底之上的陆相断陷盆地。简要概述黄海盆地特征,分析盆地沉积建造特征、构造演化阶段的基础上,探讨了盆地的形成机制。认为华北东部地幔热柱的形成与演化,使黄海地区的构造体制从印支期末的华北地块与扬子地块的拼贴—增生,转变为地幔热柱演化—幔枝构造形成—区域伸展断陷。黄海盆地是东部盆岭区的一部分,其形成受华北东部地幔热柱演化的制约。The Mesozoic-Cenozoic Yellow Sea Basin is a continental rift basin developed on the pre-Indosinian basement.The formation mechanism of the basin is discussed in this article,on the basis of geological features,sedimentary sequences and geotectonic history.As a result of the formation and evolution of geothermal plume in the eastern North China,the merging and accretion of the North China block and the Yangtze block at the end of Indosinian turned to a sequence of events of geothermal plume evolution-formation of the mantle branch structure-regional extensional rifting in the Yellow Sea area.Therefore,the Yellow Sea is a part of the eastern basin-range system and owe it＇s origin and evolution to the constraints of the geothermal plume evolution in the eastern North China.

关 键 词：幔壳运动 地幔热柱 幔枝构造 伸展构造 黄海盆地 

分 类 号：P736.1[天文地球—海洋地质]