Depositional architecture and developing settings of large-scale incised valley and submarine gravity flow systems in the Yinggehai and Qiongdongnan basins, South China Sea
- 64 Downloads
- 19 Citations
Abstract
In the Ying-Qiong basins in the South China Sea developed a set of giant inner shelf slope and submarine gravity flow deposits in the Ying-Huang formations since the Late Miocene. These deposits can be classified into 9 sequences in which slope slump-debris flow, slope fan and particularly, the large-scale axial basin-floor incised valley fills have been recognized. They were distributed in a distinctive pattern attributed to tectonic control. The development of shelf slopes and abyssal plains in the basins was related to the last episode of rapid subsidence and a large amount of sediment inputs. Large-scale basin-floor incised valleys, formed during the late Miocene and Pliocene, indicate several major sea level falls that occurred in the South China Sea.
Keywords
incised valleys gravity flow systems Ying-Qiong basinsPreview
Unable to display preview. Download preview PDF.
References
- 1.Gong Zaisheng, Lisitian, Xie Taijun et al., Continental Margin Basin Analysis and Hydrocarbon Accumulation of the Northern South China Sea (in Chinese), Beijing: Science Press, 1997.Google Scholar
- 2.Percy, P. H., Chen, Zhiyong Chen, Qimin Zhang, Sequence strtigraphy and continental margin development of the northwestern shelf of the South China Sea, AAPG Bulletin, 1993, 77(5): 842.Google Scholar
- 3.Van Wagoner, J. C., Mittchum, R. M., Campion, K. M. et al., Siliciclastic sequence stratigraphy in well logs, cores and outcrops: concepts for high-resolution correlation of time and facies, AAPG Methods in Exploration Series (7), Tulsa, 1990.Google Scholar
- 4.Galloway, W. E., Siliciclastic slope and base-of-slope depositional systems: component facies, stratigraphic architecture, and classification, AAPG Bulletin, 1998, 82(4): 569.Google Scholar
- 5.Weimer, P., Varnai, P., Budhijanto, F. M. et al., Sequence stratigraphy of Pliocene and Pleistocene turbidite systms, northern Green Canyon and Ewing, Bank (offshore Louisiana), northern Gulf of Mexico, AAPG Bulletin, 1998, 82(5b): 918.Google Scholar
- 6.Lin Changsong, Li Sitian, Zhang Qiming et al., Lithospheric stretching, subsidence and thermal history modeling: application to Yinggehai, Qiongdongnan and Songliao basins in East China, Journal of China University of Geosciences, 1997, 8(1): 83.Google Scholar
- 7.Zhong Dalai, Ding Lin, Ring process of the Qinghai-Xizang (Tibet) Plateau and its mechanism, Science in China, Ser. D, 1996, 39(4): 369.Google Scholar
- 8.Lin Changsong, Zhang Yanmei, Li Sitian et al., Sequence stratigraphy modeling of sedimentary basin: application to Erlian and Yinggehai basins in East China, Joural of China University of Geosciences, 1996, 7(1): 132.Google Scholar