伸展构造盆地的平衡剖面及其构造意义——以松辽盆地南部为例

颜丹平; 田崇鲁; 孟令波; 张建增; 周美夫

Volume 28 Issue 3

May 2003

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Article Navigation > Earth Science > 2003 > 28(3): 275-280

YAN Dan-ping, TIAN Chong-lu, MENG Ling-bo, ZHANG Jian-zeng, ZHOU Mei-fu, 2003. Balanced Geological Section for Extensional Tectonic Basin and Its Implication: An Example from Southern Songliao Basin. Earth Science, 28(3): 275-280.

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Balanced Geological Section for Extensional Tectonic Basin and Its Implication: An Example from Southern Songliao Basin

1.
Key Laboratory of Lithosphere Tectonics and Exploration, China University of Geosciences, Ministry of Education(KLLTE), Beijing 100083, China
2.
Faculty of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
3.
Department of Earth Sciences, Petroleum University, Beijing 102249, China
4.
Research Academy of Jilin Oilfield, Songyuan 138000, China
5.
Department of Earth Sciences, The University of HongKong, HongKong, China

Received Date: 2002-06-18
Publish Date: 2003-05-25

Abstract

Abstract

The balanced geological section has been widely used for the analysis of orogenic belt, but it is infrequent for extensional basins. In this paper, 4 extensional balanced geological section analysis were practiced in Fuyu oil layer of Liangjing, Jilin oilfield, southern Songliao basin with the technology and method, including deformation history restoration, decompaction and erosion restoration. The structure of different ages and the continuous sedimentary sections have been restored. The results show that the structural styles possess the characteristics of negative flower structure in the shallow level and extensional detachment in deep level. The parameters, including fault growth index, the basin extensional history and fault detachment depth, indicate that Late Cretaceous is an important stage for the structure transferring mainly with a strike-slip style before this time and an extensional structure and detachment after this time. Therefore, a basin model with twin dynamic property and back-arc characters is proposed.
- balanced geological section,
- extensional basin,
- deformational history,
- Liangjing oilfield,
- Songliao basin

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References(23)

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