DOI: 10.1306/03111110136
Scopus记录号: 2-s2.0-84863055401
论文题名: Three-dimensional seismic geomorphology and analysis of the Ordovician paleokarst drainage system in the central Tabei Uplift, northern Tarim Basin, western China
作者: Zeng H. ; Loucks R. ; Janson X. ; Wang G. ; Xia Y. ; Yuan B. ; Xu L.
刊名: AAPG Bulletin
ISSN: 0149-1810
EISSN: 1558-9540
出版年: 2011
发表日期: 2011
卷: 95, 期: 12 起始页码: 2061
结束页码: 2083
语种: 英语
Scopus关键词: Bright spots
; Circular pattern
; Damage zones
; Drainage systems
; Fluvial channels
; High quality
; Integrated approach
; Near-surface
; Northern Tarim basin
; Ordovician
; River valley
; Seismic datas
; Seismic detection limits
; Seismic geomorphology
; Sinkhole development
; Surface depressions
; Tarim Basin
; Western China
; Caves
; Drainage
; Geomorphology
; Seismic response
; Seismic waves
; Three dimensional
; Catchments
; burial diagenesis
; data quality
; drainage network
; geomorphological response
; karstification
; Ordovician
; outcrop
; paleokarst
; seismic data
; sinkhole
; three-dimensional flow
; China
; Guangxi Zhuangzu
; Guilin
; Tabei Uplift
; Tarim Basin
; Xinjiang Uygur
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: High-quality three-dimensional seismic data acquired in the central Tabei Uplift, Tarim Basin, western China, provide a rare opportunity to characterize in exceptional detail the threedimensional geomorphology of a deeply buried (5500-6500 m [ 18,045-21,325 ft]) Ordovician unconformity and the related paleokarst drainage system. An integrated approach was applied that emphasized integration of seismic data with available conventional core, wireline logs, and age-equivalent outcrops. The exceptional quality of the seismic data allowed a seismic detection limit of karstified features of less than 75 × 75 m (246 × 246 ft) horizontally and 6 m (20 ft) vertically. Interpreted geomorphologic and depositional elements include fluvial channels and canyons, fluvial valleys, sinkholes, and tower karsts and hills. The modern tower karst-drainage system in Guilin, China, is very similar to the mapped Ordovician karst-drainage system and is used as a modern analog. The interaction between the surface karst-drainage system and the shallow-subsurface cave-passage system is evidenced by the observation that surface canyons appear to initiate in areas associated with intense sinkhole development. Also, surface river valleys tend to correspond to dip-oriented surface depressions partly related to near-surface cave collapse. During burial into the deeper subsurface, the combination of intrastratal collapse (karstified strata) and suprastratal collapse (postkarst-deposited strata) created large damage zones hundreds of meters thick and kilometers wide. Coalescedcollapsed paleocave systems can be interpreted from the unique circular pattern of faults (observed in map view) that are associated with seismic bright spots. Copyright © 2011. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84863055401&doi=10.1306%2f03111110136&partnerID=40&md5=12deca6bc67190fa78fb5e9edc2bcebe
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13380
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:
Zeng H.,Loucks R.,Janson X.,et al. Three-dimensional seismic geomorphology and analysis of the Ordovician paleokarst drainage system in the central Tabei Uplift, northern Tarim Basin, western China[J]. AAPG Bulletin,2011-01-01,95(12)