| DOI: | 10.1306/01081514082
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| Scopus记录号: | 2-s2.0-84945402938
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| 论文题名: | Stratigraphic evolution of intraslope minibasins: Insights from surface-based model |
| 作者: | Sylvester Z.; Cantelli A.; Pirmez C.
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| 刊名: | AAPG Bulletin
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| ISSN: | 0149-1461
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| EISSN: | 1558-9191
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| 出版年: | 2015
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| 发表日期: | 2015
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| 卷: | 99, 期:6 | | 起始页码: | 1099
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| 结束页码: | 1129
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| 语种: | 英语
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| Scopus关键词: | Deposits
; Sedimentation
; Stratigraphy
; Subsidence
; Model outputs
; Relative movement
; Sediment supply
; Sedimentation rates
; Simple modeling
; Step functions
; Stratigraphic architecture
; Three dimensions
; Sediments
; basin
; convergence
; sand
; sedimentation
; stratigraphy
; subsidence
; three-dimensional modeling
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| Scopus学科分类: | Energy
; Earth and Planetary Sciences
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| 英文摘要: | Although numerous case studies exist to illustrate the large-scale stratigraphic architecture of salt-withdrawal minibasins, there is no clear understanding of how stratal patterns emerge as a function of the interplay between basin subsidence and sedimentation. Here we present a simple model of mass balance in minibasin sedimentation that focuses on the interaction between long-term sediment supply and basin-wide subsidence rate. The model calculates the sediment flux in three dimensions assuming a simplified basin and deposit geometry. The main model output is a cross section that captures the large-scale stratigraphie patterns. This architecture is determined by the relative movement of the stratal terminations along the basin margin: consecutive pinchout points can (1) be stationary, (2) move toward the basin edge (onlap), or (3) move toward the basin center (offlap). The direction and magnitude of this movement depend on the balance between the volume made available through subsidence, calculated only over the area of the previous deposit, and the volume needed to accommodate all the sediment that comes into the basin. Cycles of increasing-to-decreasing sediment supply result in stratigraphie sequences with an onlapping lower part and offlapping upper part. If the sediment input curve is more similar to a step function, stratigraphie sequences only consist of an onlapping sediment package, with no offlap at the top. Modeling two linked basins in which deposition takes place during ongoing subsidence shows that conventional static fill-and-spill models cannot correctly capture the age relationships between basin fills. In general, lower sediment input rates and periods of sediment bypass result in sand-poor convergent stratal patterns, and episodic but high volumetric sedimentation rates lead to well-defined onlap with an increased probability of high sand content. © 2015. The American Association of Petroleum Geologists. All rights reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84945402938&doi=10.1306%2f01081514082&partnerID=40&md5=943722f6cb31cde343a687f477330769
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/13032
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| Recommended Citation: | |
Sylvester Z.,Cantelli A.,Pirmez C.. Stratigraphic evolution of intraslope minibasins: Insights from surface-based model[J]. AAPG Bulletin,2015-01-01,99(6)
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