DOI: 10.1306/10161212014
Scopus记录号: 2-s2.0-84878158746
论文题名: Three-dimensional paleomorphologic reconstruction and turbidite distribution prediction revealing a Pleistocene confined basin system in the northeast Nankai Trough area
作者: Egawa K. ; Furukawa T. ; Saeki T. ; Suzuki K. ; Narita H.
刊名: AAPG Bulletin
ISSN: 0149-1678
EISSN: 1558-9408
出版年: 2013
发表日期: 2013
卷: 97, 期: 5 起始页码: 781
结束页码: 798
语种: 英语
Scopus关键词: Depositional process
; Gas hydrate reservoir
; Sand distribution
; Seismic profiles
; Stratigraphic units
; Threedimensional (3-d)
; Turbidite systems
; Turbidity current
; Deposition
; Forecasting
; Gas hydrates
; Hydration
; Ocean currents
; Sediment transport
; Sedimentology
; Seismic waves
; Seismology
; Stratigraphy
; Three dimensional
; bathymetry
; deep water
; forearc basin
; gas hydrate
; geomorphology
; Pleistocene
; reconstruction
; seismic data
; three-dimensional modeling
; turbidite
; Japan
; Nankai Trough
; Pacific Ocean
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Integrated three-dimensional (3-D) paleomorphologic and sedimentary modeling was used to predict the basin architecture and depositional pattern of Pleistocene forearc basin turbidites in a gas hydrate field along the northeast Nankai Trough, off central Japan. Structural unfolding and stratigraphic decompaction of the targeted stratigraphic unit resulted in successful modeling of the paleobathymetry at the time of deposition. This paleobathymetry was characterized by a simple U-shaped paleominibasin. Subsequent turbidity current modeling on the reconstructed paleobathymetric surface demonstrated morphologically controlled turbidity current behavior and selective turbidite sand distribution within the minibasin, which strongly suggests the development of a confined turbidite system. Among three candidate inflow patterns, a northeasterly inflow pattern was determined as most likely. In this scenario, flow reflection and deflection caused ponding and a concentration of sandy turbidite accumulation in the basin center, which facilitated filling of the minibasin. Such a sedimentary character is undetected by seismic data in the studied gas hydrate reservoir formation because of hydrate-cementation-induced seismic anomalies. Our model suggests that 3-D horizon surfaces mapped from 3-D seismic data along with well-log data can be used to predict paleobasin characteristics and depositional processes in deep-water turbidite systems even if seismic profiles cannot be determined because of the presence of gas hydrates. Copyright © 2013 The American Association of Petroleum Geologists. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878158746&doi=10.1306%2f10161212014&partnerID=40&md5=898590fe417c1417e9a726bf764ba341
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13248
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:
Egawa K.,Furukawa T.,Saeki T.,et al. Three-dimensional paleomorphologic reconstruction and turbidite distribution prediction revealing a Pleistocene confined basin system in the northeast Nankai Trough area[J]. AAPG Bulletin,2013-01-01,97(5)