大港油田中部滩海新近纪古湖泊发育的证据

廖远涛; 王华; 卢宗盛; 喻建新; 曹飞

Volume 33 Issue 3

May 2008

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Article Navigation > Earth Science > 2008 > 33(3): 357-364

LIAO Yuan-tao, WANG Hua, LU Zong-sheng, YU Jian-xin, CAO Fei, 2008. Evidence of Neogene Paleolake in the Central Beach Area of Dagang Oilfield. Earth Science, 33(3): 357-364.

Citation:

LIAO Yuan-tao, WANG Hua, LU Zong-sheng, YU Jian-xin, CAO Fei, 2008. Evidence of Neogene Paleolake in the Central Beach Area of Dagang Oilfield. Earth Science, 33(3): 357-364.

LIAO Yuan-tao, WANG Hua, LU Zong-sheng, YU Jian-xin, CAO Fei, 2008. Evidence of Neogene Paleolake in the Central Beach Area of Dagang Oilfield. Earth Science, 33(3): 357-364.

Citation:

LIAO Yuan-tao, WANG Hua, LU Zong-sheng, YU Jian-xin, CAO Fei, 2008. Evidence of Neogene Paleolake in the Central Beach Area of Dagang Oilfield. Earth Science, 33(3): 357-364.

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Evidence of Neogene Paleolake in the Central Beach Area of Dagang Oilfield

1.
Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China
2.
Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China

Received Date: 2008-01-24
Available Online: 2022-06-16
Publish Date: 2008-05-25

Abstract

Abstract

The Neogene strata of central beach area in the Dagang Oilfield are important for reserve exploration and strategic substitution.The main depositional system of Neogene was regarded as meandering rivers and braided rivers.However, based on the analysis of ichnofabric, microfossils, organic compounds, oxygen and carbon isotope, seismic data, as well as the experiences of petroleum exploration in the shallow strata of Bohai Bay, lacustrine environment can be recognized in the east district of central beach, which is supported by the following evidence: typical Palaeophycus ichnofabric is found, which develops particularly in the shallow lake; abundant phytoplanktonic algae fossils are discovered, which live generally in the shallow lake.Moreover, as an indicator of ancient and modern lakes' existence, lots of ostracodas such as Candona and Cypris are discovered.The type of kerogen, organic compounds, oxygen and carbon isotope, and seismic data are also the existent evidences of lacustrine environment.The paleolake expanded till its maximum during the middle and late periods of Guantao Formation and the early period of Minghuazhen Formation.
- paleolake,
- ichnofabric,
- Neogene,
- beach district,
- Dagang oilfield

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References(37)

References

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Evidence of Neogene Paleolake in the Central Beach Area of Dagang Oilfield

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