We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Paleogene tectonic evolution controls on sequence stratigraphic patterns in the central part of deepwater area of Qiongdongnan basin, northern South China Sea.
- Authors
Song, Guangzeng; Wang, Hua; Gan, Huajun; Sun, Zhipeng; Liu, Xiaolong; Xu, Meng; Ren, Jinfeng; Sun, Ming; Sun, Di
- Abstract
In active rift basins, tectonism is extremely important for sequence stratigraphic patterns, affecting both the sequence architecture and internal makeup. Sequence stratigraphic framework of a Paleogene rift succession in Qiongdongnan Basin, northern South China Sea, was built using seismic profiles, complemented by well logs and cores. One first-order and three second-order sequences were identified on the basis of basin-scale unconformities, and seven third-order sequences are defined by unconformities along the basin margins and correlative conformities within the central basin. Through unconformity analysis and backstripping procedure, the Paleogene synrift tectonic evolution of deepwater area of Qiongdongnan Basin was proved to be episodic, which can be divided into rifting stage-I, rifting stage-II and rifting stage-III. Episodic rifting resulted in the formation of various types of structural slope break belts, which controlled different architectures and internal makeup of sequences. This study enhances the understanding of the control of tectonic evolution on sequence stratigraphic patterns and establishes relevant patterns in a typical rift basin, and further proposes the favorable sandstone reservoirs developing in different sequence stratigraphic patterns, which will be pretty helpful for subtle pool exploration in deepwater area of petroliferous basins.
- Subjects
SOUTH China Sea; CHINA; STRATIGRAPHIC geology; TECTONIC landforms; PALEOGENE paleopedology; GEOLOGICAL basins; PALEOGENE paleontology; STRATIGRAPHIC paleontology
- Publication
Journal of Earth Science, 2014, Vol 25, Issue 2, p275
- ISSN
1674-487X
- Publication type
Article
- DOI
10.1007/s12583-014-0433-7