南海北部大陆边缘深水区下陆坡盆地沉积特征

唐勇; 黎明碧; 方银霞; 何敏; 吴招才; 丁巍伟

doi:10.3799/dqkx.2011.091

Volume 36 Issue 5

Sep. 2011

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Article Navigation > Earth Science > 2011 > 36(5): 869-876

TANG Yong, LI Ming-bi, FANG Yin-xia, HE Min, WU Zhao-cai, DING Wei-wei, 2011. Characteristics of Lower Slope Basin in Northern Continental Margin of South China Sea. Earth Science, 36(5): 869-876. doi: 10.3799/dqkx.2011.091

Citation:

TANG Yong, LI Ming-bi, FANG Yin-xia, HE Min, WU Zhao-cai, DING Wei-wei, 2011. Characteristics of Lower Slope Basin in Northern Continental Margin of South China Sea. Earth Science, 36(5): 869-876. doi: 10.3799/dqkx.2011.091

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Characteristics of Lower Slope Basin in Northern Continental Margin of South China Sea

doi: 10.3799/dqkx.2011.091

1.
Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China
2.
The Second Institute of Oceanography, State Oceanic Administration (SOA), Hangzhou 310012, China
3.
Technical Dept., China National Of fshore Oil Corporation Limited, Shenzhen 510240, China

Received Date: 2010-12-19
Publish Date: 2011-09-15

Abstract

Abstract

The Cenozoic stratigraphic interpretation of lower continental slope in the northern South China Sea is studied and compared with Baiyun sag, to understand the sedimentary characteristics and stratigraphic distribution of deep water basin for environmental impact of construction, based on the seismic profiles acquired by SO49 and 973 cruises.The Cenozoic sediments of lower continental slope in southern Baiyun sag can be divided into eight stratas, namely, Pliocene-Quaternary, Late Miocene, Middle Miocene, Early Miocene, Late Oligocene, Late Eocene-Early Oligocene, Middle Eocene, Paleogene-Early Eocene.The tectonic evolution of lower continental slope depressions can be divided into following stages: rifting, rifting-depression transitional and depression stages, while their depositional environments change from river to shallow marine and abyssa1, which results in different topography in different stages.The topographic evolvement in the study area includes three stages, that is, Neocene to present, Late Oligocene, Early Oligocene and Paleogene.
- lower continental slope in northern South China Sea,
- Liwan Sag,
- tectonics,
- sedimentation,
- marine geology

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References(26)

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