4.6 Article

Characteristics and evolution of Cenozoic sediments in the Liyue Basin, SE South China Sea

期刊

JOURNAL OF ASIAN EARTH SCIENCES
卷 60, 期 -, 页码 114-129

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jseaes.2012.08.003

关键词

Seismic sequence interface; Sedimentary evolution; Cenozoic; Liyue Basin; South China Sea

资金

  1. Program of Comprehensive Study of Global Petroleum Geology and Regional Preference [GT-YQ-QQ-1-02]
  2. Natural Science Foundation of China [40976029, 41276048]
  3. National Basic Research Program of China [2009CB2194]
  4. Key Program of Key Technologies for Petroleum Exploration in Deep Oceanic Areas [2008ZX95025-005-01]

向作者/读者索取更多资源

The Liyue Basin in southeastern South China Sea is considered to be a Cenozoic basin superimposed on the Mesozoic Erathem. The present account is based on comprehensive analysis of seismic profiles, dragnet and core samples. Cenozoic deposits in the basin are characterized by a sequence of marine detrital and carbonate rocks. There are two regional unconformities (T-70 and T-40), corresponding to the commencement and termination of sea-floor spreading in the South China Sea, in the Late Oligocene and late Early Miocene respectively. The Cenozoic sedimentary evolution of the basin recorded different sedimentary responses to sea-floor spreading in the South China Sea, and reflected differences in the basin structure, paleogeographic pattern and sedimentary characteristics before 30 Ma (Late Oligocene) and after 30 Ma. The evolution of sea-floor spreading, changes in sea level and sediment sources controlled the Cenozoic sedimentary infill. (C) 2012 Elsevier Ltd. All rights reserved.

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