DOI: 10.1306/01311513229
Scopus记录号: 2-s2.0-84938791514
论文题名: Shelf-edge trajectories and stratal stacking patterns: Their sequence-stratigraphic significance and relation to styles of deep-water sedimentation and amount of deep-water sandstone
作者: Gong C. ; Wang Y. ; Pyles D.R. ; Steel R.J. ; Xu S. ; Xu Q. ; Li D.
刊名: AAPG Bulletin
ISSN: 0149-1483
EISSN: 1558-9213
出版年: 2015
发表日期: 2015
卷: 99, 期: 7 起始页码: 1211
结束页码: 1243
语种: 英语
Scopus关键词: Deposits
; Gravitation
; Sand
; Sandstone
; Sedimentation
; Stratigraphy
; Mass transport deposit
; Model independent
; Negative trajectories
; Qiongdongnan basin
; Quantitative characteristics
; Sequence stratigraphy
; Stacking patterns
; Transport systems
; Trajectories
; database
; deep water
; gravity flow
; mass transport
; mass wasting
; quantitative analysis
; sandstone
; sedimentation rate
; sequence stratigraphy
; shelf break
; stacking
; trajectory
; Pacific Ocean
; Qiongdongnan Basin
; South China Sea
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Using a seismic database from the Qiongdongnan Basin in the South China Sea, this study demonstrates that shelf-edge trajectories and stratal stacking patterns are reliable, but understated, predictors of deep-water sedimentation styles and volumes of deep-water sand deposits, assisting greatly in locating sand-rich environments and in developing a more predictive and dynamic stratigraphy. Three main types of shelf-edge trajectories and their associated stratal stacking patterns were recognized: (1) flat to slightly falling trajectories with negative trajectory angles (Tse) (-2° to 0°) and negative shelf-edge aggradation to progradation ratios (dy/dx) (-0.04 to 0) and associated progradational and downstepping stacking patterns with low clinoform relief (Rc) (150-550 m [492-1804 ft]) and negative differential sedimentation on the shelf and basin (As/Ab) (-0.6 to 0); (2) slightly rising trajectories with moderate Tse (0°-2°) and medium dy/dx (0-0.04), and associated progradational and aggradational stacking patterns with intermediate Rc (250-400 m [820-1312 ft]) and intermediate As/Ab (0-0.6); and (3) steeply rising trajectories with high Tse (2°-6°) and high dy/dx (0.04-0.10) and associated dominantly aggradational stacking patterns with high Rc (350-650 m [1148-2132 ft]) and high As/Ab (1-2). Each trajectory regime represents a specific stratal stacking patterns, providing new tools to define a model-independent methodology for sequence stratigraphy. Flat to slightly falling shelf-edge trajectories and prograda-tional and downstepping stacking patterns are empirically related to large-scale, sand-rich gravity flows and associated bigger and thicker sand-rich submarine fan systems. Slightly rising shelf-edge trajectories and progradational and aggradational stacking patterns are associated with mixed sand/mud gravity flows and moderate-scale slope-sand deposits. Steeply rising shelf-edge trajectories and dominantly aggradational stacking patterns are fronted by large-scale mass-wasting processes and associated areally extensive mass-transport systems. Therefore, given a constant sediment supply, then rse, dy/dx, Rc, and As/Ab are all proportional to intensity of mass-wasting processes and to amounts of mass-transport deposits, and are inversely proportional to the intensity of sand-rich gravity flows and to amounts of deep-water sandstone. These relationships can be employed to relate quantitative characteristics of shelf-edge trajectories and stratal stacking patterns to deep-water sedimentation styles. Copyright ©. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938791514&doi=10.1306%2f01311513229&partnerID=40&md5=8c6ac0a6a7b4c7dfcd04c30c940b799b
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13054
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
There are no files associated with this item.
Recommended Citation:
Gong C.,Wang Y.,Pyles D.R.,et al. Shelf-edge trajectories and stratal stacking patterns: Their sequence-stratigraphic significance and relation to styles of deep-water sedimentation and amount of deep-water sandstone[J]. AAPG Bulletin,2015-01-01,99(7)