碳酸盐斜坡沉积层序地层研究

覃建雄; 曾允孚; 陈洪德; 田景春

doi:10.11781/sysydz199902110

碳酸盐斜坡沉积层序地层研究

doi: 10.11781/sysydz199902110

成都理工学院沉积所, 四川成都 610059

详细信息

作者简介:
覃建雄(1967- ),男(汉族),贵州荔波人,博士,主要研究储层沉积学、沉积包裹体学、层序地层学.

中图分类号: P618.13;P53
计量
- 文章访问数: 567
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- 被引次数: 0
出版历程
- 收稿日期: 1998-05-21
- 刊出日期: 1999-04-25

SEQUENCE STRATIGRAPHY STUDY OF CARBONATE SLOPE DEPOSIT

Institute of Deposit, Chengdu College of Technology, Chengdu, Sichuan 610059, China

摘要

摘要: 通过右江盆地二叠系层序地层研究表明,在海平面升降旋回的各个时期,均有重力流的发育,并显示各自特征的层序内部构型和成因格架。低水位期以盆缘-下斜坡混屑浊积岩为特征,陆棚边缘体系域中重力流相对较少;海侵期重力流以钙屑碎屑流及其再改造砂沉积为主;高水位期重力流沉积厚度大、分布广、成因类型丰富,主要以钙屑塌积岩、颗粒流、液化沉积物流、碎屑流及浊流大量发育为特征。
- 层序地层 /
- 斜坡体系 /
- 层序格架 /
- 重力流沉积
Abstract: Study on the Permian Sequence Stratigraphy of the Youjiang Basin reveals that gravity flow develops during every period of eustatic cycles and it displays individual characteristic internal configuration and genetic framework of sequences.Lowstand is characterized by basin margin-downslope miscellaneous lithic turbidites,and gravity flow is relatively less in shelf marginal systems.During transgressive periods,gravity flow is dominated by calcarenaceous clastic flow and its recomposed sand deposit.The deposit of gravity flow in highstand has large thickness,wide distribution and rich genetic patterns,and is mainly characterized by well-developed calcarenaceous colluvial rocks,grain flow,liquefied sediment flow,clastic flow,and turbidity flow.
- Sequence Stratigraphy /
- slope systems /
- sequence framework /
- gravity-flow deposit

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参考文献(12)

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