“构造坡折带”——断陷盆地层序分析和油气预测的重要概念

林畅松; 潘元林; 肖建新; 孔凡仙; 刘景彦; 郑和荣

Volume 25 Issue 3

May 2000

Turn off MathJax

Article Contents

Article Navigation > Earth Science > 2000 > 25(3): 260-266

LIN Chang-song, PAN Yuan-lin, XIAO Jian-xin, KONG Fan-xian, LIU Jing-yan, ZHENG He-rong, 2000. STRUCTURAL SLOPE-BREAK ZONE: KEY CONCEPT FOR STRATIGRAPHIC SEQUENCE ANALYSIS AND PETROLEUM FORECASTING IN FAULT SUBSIDENCE BASINS. Earth Science, 25(3): 260-266.

Citation:

PDF( 525 KB)

STRUCTURAL SLOPE-BREAK ZONE: KEY CONCEPT FOR STRATIGRAPHIC SEQUENCE ANALYSIS AND PETROLEUM FORECASTING IN FAULT SUBSIDENCE BASINS

1.
Department of Energy Resources, China University of Geosciences, Beijing 100083, China
2.
Shengli Oil Administration Bureau, Dongying 257001, China

Received Date: 1999-10-08
Publish Date: 2000-05-25

Abstract

Abstract

The structural slope-break zone, resulting in the abrupt change of the depositional slope, is initiated by the long-term activity of syndepositional structure. The researches into the Bohaiwan basin indicate that the structural slope-break zone in the fault subsidence lacustrine basin constrained the change in the accommodation space of the basins, controlling the development of the depositional sequence and the distribution of the depositional system tracts and the sand bodies. The half-graben basin may accommodate the following four kinds of structual slope-break zones: uplift-gentle-slope margins, gentle slope-depression margins, steep-slope-depression margins, and uplift-steep-slope margins. Furthermore, several syndepositional structural (fault) slope-break patterns are identified such as "comb-like structure" and "broom-like structure". These structures controlled the distribution patterns of the specific depositional systems tracts and the sand bodies in the basin. The structural slope-break zone is favorable for the formation of petroleum accumulation. The structual slope-break zone at the depression margin such as the "comb-like structure" has proved important for the prediction and exploration of the deep-seated subtle traps in the basin.
- structural slopebreak zone,
- sandbody prediction,
- fault basin

FullText(HTML)

References(10)

References

[1]	林畅松, 刘景彦, 张燕梅. 沉积盆地动力学与模拟研究[J]. 地学前缘, 1988, 5: 119~125. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY8S1.014.htm
[2]	Ravnas R, Steel R J. Architecture of marine rift-basin successions[J]. AAPG Bulletin, 1998, 82: 110~146.
[3]	Lambias J J. A model of tectonic control of lacustrine stratigraphic sequences in continental rift basins[J]. AAPG Memoir, 1991, 50: 137~149.
[4]	Lin C S, Li S T, Wan Y X, et al. Depositional systems, sequence stratigraphy and basin filling evolution of Erlian fault lacustrine basin, Northeast China[A]. In: Liu B, Li S, eds. Basin analysis, global sedimentary geology and sed-imentology, Proceedings of the 30th IGC[C]. Utrecht: VSP International Science Publishers, 1997. 163~175.
[5]	Cohen A S. Tectono-stratigraphic model for sedimentation in lake Tanganyika, Africa[J]. AAPG Memoir, 1991, 50: 137~149.
[6]	Vail P R, Mitchum R M, Thompson S. Global cycles of relative changes of sea level[J]. Am Ass Petrol Geol, 1977, 26: 99~116.
[7]	Vail P R, Audemard F, Bowman S A, et al. The stratigraphic signatures to tectonics, eustasy and sedimentation: an overview [A]. In: Einsele, ed. Cycles and events in stratigraphy [C]. Berlin Heidelberg: Springer-Verlag, 1991. 615~659.
[8]	Lin C S, Yang Q, Li S T. Structural and depositional patterns of the Tertiary Baise basin, Guangxi autonomous Region (Southeastern China): a predictive model for fossil fuel ex ploration [A]. In : Anadon P, Cabrera L, Kelts K, eds. Lacustrine facies analysis[C]. Blackwell: Spec Publs Int Ass Sediment, 1991. 75~92.
[9]	Lin C S, Li S T, Zhang Q M, et al. Subsidence and stretching of some Mesozoic rift basins in east China [A]. In : Liu B, Li S, eds. Basin analysis, global sedimentary geology and sedimentology, Proceedings of the 30th IGC [C]. Utrecht, Netherlands : VSP International Science Publishers, 1997.176~1195.
[10]	Strecker U, Steidtmann J R, Smithson S B. A coceptual tectonostratigraphic model for seismic facies migrations on a fluvio-lacustrine extensional basin [J]. AAPG Bulletin, 1999, 83: 43~61.