万安盆地新生代层序地层格架与岩性地层圈闭

杨楚鹏; 姚永坚; 李学杰; 万玲; 韩冰; 万荣胜

doi:10.3799/dqkx.2011.088

Volume 36 Issue 5

Sep. 2011

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Article Navigation > Earth Science > 2011 > 36(5): 845-852

YANG Chu-peng, YAO Yong-jian, LI Xue-jie, WAN Ling, HAN Bing, WAN Rong-sheng, 2011. Cenozoic Sequence Stratigraphy and Lithostratigraphic Traps in Wan'an Basin, the Southwestern South China Sea. Earth Science, 36(5): 845-852. doi: 10.3799/dqkx.2011.088

Citation:

YANG Chu-peng, YAO Yong-jian, LI Xue-jie, WAN Ling, HAN Bing, WAN Rong-sheng, 2011. Cenozoic Sequence Stratigraphy and Lithostratigraphic Traps in Wan'an Basin, the Southwestern South China Sea. Earth Science, 36(5): 845-852. doi: 10.3799/dqkx.2011.088

Citation:

YANG Chu-peng, YAO Yong-jian, LI Xue-jie, WAN Ling, HAN Bing, WAN Rong-sheng, 2011. Cenozoic Sequence Stratigraphy and Lithostratigraphic Traps in Wan'an Basin, the Southwestern South China Sea. Earth Science, 36(5): 845-852. doi: 10.3799/dqkx.2011.088

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Cenozoic Sequence Stratigraphy and Lithostratigraphic Traps in Wan'an Basin, the Southwestern South China Sea

doi: 10.3799/dqkx.2011.088

Institute of Development Strategies for Marine Geosciences, Guangzhou Marine Geological Survey, Ministry of Land & Resources of PRC, Guangzhou 510760, China

Received Date: 2011-04-30
Publish Date: 2011-09-15

Abstract

Abstract

Wan'an basin, as a typical Cenozoic transtensional basin, is one of the most important petroliferous basins in the southwestern of South China Sea.In this study, using seismic, drilling and some palaeontologic data, the Cenozoic sequence stratum pattern in Wan'an basin is established, which is subdivided into three super-sequences, six secondary sequences and ten tertiary sequences.In this sequence, the depositional process of Cenozoic strata in Wan'an basin is interpreted as gradually transgression based on comparative study of seismic and drilling data.SSQ1 and SSQ2 sequences are predominantly composed of lacustrine deposits during syn-rift.And SSQ3, SSQ4, SSQ5 as well as SSQ6 sequences are characterized by transitional facies and marine deposit.According to the interpretation of the lithofacies and sedimentary facies from typical seismic profiles, several kinds of lithostratigraphic traps are recognized and predicted, including basin floor fan, turbidite fan and colluvial mass in low-stand system tracts; upward wedge-out sands in transgressive system tracts; and delta sands and biohermal suite in high-stand system tracts.
- petroleum geology,
- lithostratigraphic traps,
- sedimentation,
- sequence stratigraphy,
- Wan'an basin

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References(36)

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