| 库车坳陷古近系层序和沉积体系发育特征 |
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| 引用本文： | 刘景彦, 林畅松, 肖建新. 库车坳陷古近系层序和沉积体系发育特征[J]. 煤田地质与勘探, 2003, 31(6): 8-10. |
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| 作者姓名： | 刘景彦 林畅松 肖建新 |
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| 作者单位： | 中国地质大学能源系,北京,100083;中国地质大学能源系,北京,100083;中国地质大学能源系,北京,100083 |
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| 基金项目： | 国家基础研究发展规划项目资助(G1999043304) |
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| 摘 要： | 以露头和测井资料为基础,建立了库车坳陷古近系层序地层格架,划分出5个三级层序和2 4个四级层序。四级层序内识别出冲积扇/扇三角洲、辫状河、曲流河、辫状河三角洲、下切水道、滨浅湖、干盐湖、泻湖-海湾、半深湖浊流-重力流等多种沉积体系。通过层序-体系域对比,将区内的三级层序划分为6种沉积构成类型,总结了每种类型在前陆盆地中的发育和分布特征。
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| 关 键 词： | 层序地层 沉积体系 古近系 库车坳陷 |
| 文章编号： | 1001-1986(2003)06-0008-03 |
| 收稿时间： | 2003-02-20 |
The characteristic of sequence stratigraphy and depositional systems of the Palaeogene Kuqa depression |
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| LIU Jing-yan, LIN Chang-song, XIAO Jian-xin. The characteristic of sequence stratigraphy and depositional systems of the Palaeogene Kuqa depression[J]. COAL GEOLOGY & EXPLORATION, 2003, 31(6): 8-10. |
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| Authors: | LIU Jing yan LIN Chang song XIAO Jian xin |
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| Affiliation: | 1. China University of Geosciences, Beijing 100083, China |
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| Abstract: | The strata in the Palaeogene Kuqa depression has been classified into 5 the 3rd order sequences,24 the 4th order sequences based on the integrated study on outcrops and well logs.Several kinds of depositional systems have been identified,such as alluvial fan deposits,fluvial and delta deposits,incised valley filling,evaporite salt lake deposit,lagoon or sea gull deposit,flooding basin deposit,lacustrine deposit,gravity or turbidity flow deposit,and so on.According to the depositional composition and its development feature in foreland basin,the sequence can be classified into 6 kinds.The development and distribution of every kind of sequence in foreland basin also have been summarized in this paper. |
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| Keywords: | sequence stratigraphy depositional systems Palaeogene Kuqa depression |
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