DOI: 10.1306/01281110074
Scopus记录号: 2-s2.0-80053426969
论文题名: Depositional systems and sequence architecture of the Oligocene Dongying Formation, Liaozhong depression, Bohai Bay Basin, Northeast China
作者: Dong W. ; Lin C. ; Eriksson K.A. ; Zhou X. ; Liu J. ; Teng Y.
刊名: AAPG Bulletin
ISSN: 0149-1833
EISSN: 1558-9563
出版年: 2011
发表日期: 2011
卷: 95, 期: 9 起始页码: 1475
结束页码: 1493
语种: 英语
Scopus关键词: Bohai Bay Basin
; Climatic oscillations
; Depositional system
; Dongying Formation
; Highstand systems tract
; Litho-stratigraphic
; Northeast China
; Oligocene
; Principal factors
; Prodelta
; Rift basin
; Sandstone reservoirs
; Sediment supply
; Seismic profiles
; Systems tracts
; Tectonic movements
; Transgressive systems tracts
; Well logs
; Anoxic sediments
; Deposits
; Diseases
; Lakes
; Reservoirs (water)
; Stratigraphy
; Tectonics
; Well logging
; Coastal zones
; beach profile
; depositional sequence
; fan delta
; lacustrine deposit
; lake level
; lithostratigraphy
; mudstone
; Oligocene
; rifting
; sandstone
; seismic data
; sequence stratigraphy
; subsidence
; unconformity
; well logging
; Bohai Sea
; Liaozhong Depression
; Pacific Ocean
; Yellow Sea
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: The sequence-stratigraphic framework and depositional sys-tems of an Oligocene lacustrine rift succession in the Liaozhong depression of Bohai Bay Basin in northeastern China were investigated using seismic profiles, complemented by well logs and cores. Seven sequences are identified on the basis of unconformities on basin margins and correlative conformities in the basin center. Depositional systems are associated with systems tracts within sequences. Lowstand systems tracts are dominated by sublacustrine fans; transgressive systems tracts are mainly composed of beach-bar deposits; and highstand systems tracts are characterized by deep lacustrine fan or braid-delta deposits. Episodic tectonic movement was the principal factor that controlled the development of the sequences. Lake-level changes resulting from climatic oscillations may have controlled the development of these sequences. The balance between tectonic subsidence and sediment supply controlled the type of lake basin. The Bohai Bay Basin was a balanced-fill basin in the early and middle stages of the Dongying Formation and evolved into an overfilled basin at the end of deposition of the Dongying Formation. This study enhances the understanding of depositional system configuration and systems tracts in a typical rift basin and proposes that the most favorable sandstone reservoirs are developed in sublacustrine fan deposits. Relative lowstand sublacustrine fan deposits capped by relative highstand prodelta or deep lacustrine mudstone form the higest potential lithostratigraphic traps. © 2011 The American Association of Petroleum Geologists. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-80053426969&doi=10.1306%2f01281110074&partnerID=40&md5=c92ba9accbf744ff11b0f9d4e9080674
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13402
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:
Dong W.,Lin C.,Eriksson K.A.,et al. Depositional systems and sequence architecture of the Oligocene Dongying Formation, Liaozhong depression, Bohai Bay Basin, Northeast China[J]. AAPG Bulletin,2011-01-01,95(9)