DOI: 10.1306/04031209037
Scopus记录号: 2-s2.0-84872443784
论文题名: An integrated model of the structural evolution of the central Brooks Range foothiUs, Alaska, using structural geometry, fracture distribution, geochronology, and microthermometry
作者: Duncan A. ; Hanks C. ; Wallace W.K. ; O'Sullivan P.B. ; Parris T.M.
刊名: AAPG Bulletin
ISSN: 0149-1715
EISSN: 1558-9445
出版年: 2012
发表日期: 2012
卷: 96, 期: 12 起始页码: 2245
结束页码: 2274
语种: 英语
Scopus关键词: Calcite-cement
; Early Cretaceous
; Fold-and-thrust belts
; Foreland basin
; Fracture distributions
; Integrated models
; Late cretaceous
; Major factors
; Microthermometry
; Orogenic wedge
; Petroleum migration
; Shallow depths
; Structural evolution
; Structural geometry
; Structural reconstruction
; Thermal history
; Uncemented
; Cements
; Deformation
; Geochronology
; Tectonics
; Fracture
; calcite
; deformation mechanism
; fracture geometry
; geochronology
; integrated approach
; numerical model
; petroleum
; reconstruction
; rock
; structural change
; temperature effect
; thrust
; uplift
; Valanginian
; Alaska
; Brooks Range
; United States
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Episodic deformation, triangle zone development, and related back thrusting in the central Brooks Range foothills are major factors in the distribution of fractures and the thermal history of rocks involved in the deformation. Structural reconstructions suggest that the rocks forming the Endicott Mountains allochthon, the youngest and northernmost part of the orogen during its first phase, were emplaced during the Early Cretaceous (Valanginian) at temperatures approximately 150°C. Fractures associated with that deformation are filled with synkinematic calcite cement, indicating that they formed in the presence of fluids. After a period of quiescence during the Late Cretaceous, renewed deformation involved the shortening of the existing orogenic wedge and the development of a triangle zone and overlying back thrust in adjacent mid- to Late Cretaceous rocks of the foreland basin. This later de-formational event and subsequent uplift resulted in two sets of uncemented barren fractures that formed in all parts of the fold and thrust belt. Restriction of cement-filled fractures to the older and structurally deeper parts of the orogen implies that the youngest and most obvious fractures visible at the surface developed at shallow depths and temperatures and thus may not have been an important factor in petroleum migration. © 2012. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84872443784&doi=10.1306%2f04031209037&partnerID=40&md5=b367ad3923896de7d25d8d06df7c9f4a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13285
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:
Duncan A.,Hanks C.,Wallace W.K.,et al. An integrated model of the structural evolution of the central Brooks Range foothiUs, Alaska, using structural geometry, fracture distribution, geochronology, and microthermometry[J]. AAPG Bulletin,2012-01-01,96(12)