| DOI: | 10.1306/09010909035
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| Scopus记录号: | 2-s2.0-77950318728
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| 论文题名: | Element migration in turbidite systems: Random or systematic depositional processes? |
| 作者: | Labourdette R.; Bez M.
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| 刊名: | AAPG Bulletin
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| ISSN: | 0149-1946
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| EISSN: | 1558-9676
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| 出版年: | 2010
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| 发表日期: | 2010
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| 卷: | 94, 期:3 | | 起始页码: | 345
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| 结束页码: | 368
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| 语种: | 英语
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| Scopus关键词: | Channel margins
; Channel sand body
; Confinement degree
; Degree of confinement
; Depositional setting
; Geometric analysis
; Lateral migration
; Mathematical relationship
; Model complexes
; Oligocene
; Pleistocene
; Reservoir architecture
; Reservoir characteristic
; Sand body
; Sedimentary bodies
; Stacking architecture
; Vertical component
; Vertical movement components
; West Africa
; Metals
; channel
; element mobility
; geometry
; particle settling
; reservoir
; turbidite
; Africa
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| Scopus学科分类: | Energy
; Earth and Planetary Sciences
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| 英文摘要: | In turbidite settings, channel sand bodies stack laterally and vertically as a function of turbidite story confinement degree. Therefore, we can establish a simple mathematical relationship between these parameters to represent and model complex reservoir features. The morphology of eight well-imaged turbidite complexes from west Africa (from upper Oligocene to Pleistocene deposits) was studied to improve the understanding of their evolution and to assess depositional processes. Measurements of individual channels are treated statistically and compared with channel story characteristics. Based on this geometric analysis, we establish a relationship between the degree of channel story confinement and the stacking architecture of channelized sand bodies. This relationship allows an assessment of reservoir architecture and connectivity for different depositional settings characterized by channel story confinement. Less-confined channel stories characterized by lateral migration patterns with low vertical amalgamation have a tabular amalgamated architecture where connectivity is related to channel margin heterogeneities. As confinement increases, downdip and vertical movement components increase, leading to ribbon platform and vertical amalgamation of sand bodies. Resulting reservoir characteristics are highly variable along channel stories, depending on downdip and vertical component ratios. According to our observations, the degree of confinement exerts an important control on turbidite flows and the ultimate distribution and architecture of sedimentary bodies. Copyright © 2010. The American Association of Petroleum Geologists. All rights reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-77950318728&doi=10.1306%2f09010909035&partnerID=40&md5=8d4be35c623a9faf7c1fd65ae9244230
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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/13515
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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: | |
Labourdette R.,Bez M.. Element migration in turbidite systems: Random or systematic depositional processes?[J]. AAPG Bulletin,2010-01-01,94(3)
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