|
|||||
|
|
| 北黄海盆地东部坳陷中新生代构造演化 | |
| 引用本文： | 陈亮,刘振湖,金庆焕,王英民,袁书坤.北黄海盆地东部坳陷中新生代构造演化[J].大地构造与成矿学,2008,32(3). |
| 作者姓名： | 陈亮 刘振湖 金庆焕 王英民 袁书坤 |
| 作者单位： | 1. 中国科学院广州地球化学研究所,广东,广州,510640;国土资源部广州海洋地质调查局,广东,广州,510760 2. 国土资源部广州海洋地质调查局,广东,广州,510760 3. 中国石油大学(北京)资源与信息学院,北京,102249 |
| 摘 要： | 在最新二维地震资料解释的基础上,对北黄海盆地东部坳陷的重要不整合面进行了研究,共识别出了4个重要不整合面;利用声波时差法和构造横剖面法,恢复了两期重要不整合面的剥蚀厚度;同时根据重磁资料及精细地震解释,对北黄海盆地东部坳陷的断裂特征作出了初步的研究,分析了主要断裂的形成期次及活动时间。最终,结合地层的分布特征及钻井资料,将北黄海盆地东部坳陷的构造演化史分为5个阶段。 |
| 关 键 词： | 北黄海盆地东部坳陷 北黄海盆地 构造演化 剥蚀厚度 |
MESO-CENOZOIC TECTONIC EVOLUTION OF THE EAST DEPRESSION OF NORTH YELLOW SEA |
|
| CHEN Liang,LIU Zhenhu,JIN Qinhuan,WANG Yingmin,YUAN Shukun.MESO-CENOZOIC TECTONIC EVOLUTION OF THE EAST DEPRESSION OF NORTH YELLOW SEA[J].Geotectonica et Metallogenia,2008,32(3). | |
| Authors: | CHEN Liang LIU Zhenhu JIN Qinhuan WANG Yingmin YUAN Shukun |
| Abstract: | The east depression of North Yellow Sea is situated in the east of the North Yellow Sea, a low degree of exploration Meso-Cenozoic sedimentary basin, which develops upon the base of the Sino-Korea Para platform. The latest 2D seismic data indicate that the east depression of North Yellow Sea develops 4 significant unconformities: the unconformity between the Jurassic and Cretaceous, the one between the Mesozoic and Cenozoic, the one inside the Oligocene and the one between the Neogene and Paleogene. By using sonic velocity data and the change ratio of the layer thickness, the paper restored the erosion thickness of the two unconformities. The fault system of the east depression of North Yellow Sea dominantly trends northeast or northwest.The analyses on these faults indicated that the fault activities can be divided into three stages:the late Jurassic-early Cretaceous, the Eocene and Neogene. Finally, combined with the analysis of stratum distribution and well data, the structural evolution of the east depression of North Yellow Sea can be approximately divided into five stages: sag depression in late Jurassic-early Cretaceous, thermal upwelling in late Cretaceous-Paleocene, extensional fault depression in the Paleogene, compressed in late Oligocene-early Neogene and thermal subsiding in the Neogene. |
| Keywords: | the east depression of North Yellow Sea North Yellow Sea basin tectonic evolution erosion thickness |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |