DOI: 10.1306/06301009165
Scopus记录号: 2-s2.0-79951766700
论文题名: Fault framework and kinematic evolution of inversion structures: Natural examples from the Neuquén Basin, Argentina
作者: Grimaldi G.O. ; Dorobek S.L.
刊名: AAPG Bulletin
ISSN: 0149-1889
EISSN: 1558-9619
出版年: 2011
发表日期: 2011
卷: 95, 期: 1 起始页码: 27
结束页码: 60
语种: 英语
Scopus关键词: Analog models
; Argentina
; Bounding faults
; Complex deformation
; Data sets
; Deep fault
; Early Cretaceous
; Early Jurassic
; Fault development
; Fault displacement
; Fault system
; Fracture distributions
; Framework development
; Half graben
; Hanging-wall deformations
; Internal deformation
; Inversion structures
; Kinematic evolution
; Mesozoic
; Normal faults
; Petroleum systems
; Predictive analysis
; Seismic datas
; Shallow faults
; Strike-slip deformation
; Structural complexity
; Structural styles
; Syn-rift
; Transpressional tectonics
; Triassic
; Deformation
; Seismology
; Stratigraphy
; Tectonics
; Walls (structural partitions)
; borehole
; data set
; deformation
; fault displacement
; fault zone
; folding
; footwall
; graben
; inversion tectonics
; kinematics
; Mesozoic
; petroleum
; seismic data
; strike-slip fault
; tectonic wedge
; transpression
; Argentina
; Neuquen Basin
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Mesozoic tectonic inversion in the Neuquén Basin of west-central Argentina was investigated by analyzing a three-dimensional seismic and borehole data set over prominent inversion structures related to transpressional tectonics along the Huincul arch. This conspicuous strike-slip deformation has been active since the Early Jurassic to Early Cretaceous and caused the reactivation of normal faults and the inversion of Triassic half grabens, some of which are imaged by the seismic data. Detailed structural and stratigraphic mapping allowed the identification of two main fault systems associated with inversion structures: (1) deep faults that affected basement and synrift strata where preexisting faults were selectively reactivated during inversion based on their length and (2) shallow faults that affected postrift and syninversion strata. Normal faults formed at high angle to the reactivated half-graben bounding fault as a result of hanging-wall expansion and internal deformation as it accommodated the shape of the curved footwall during oblique inversion. Structural restorations suggest that contraction during inversion was initially accommodated by folding and internal deformation of synrift sedimentary wedges, followed by displacement along half-graben bounding faults. We suspect that during late inversion, the weight of the overburden inhibited additional fault displacement and folding became the main shortening-accommodating mechanism. Natural examples described in this study exhibit significant along-strike variation in structural style and high structural complexity associated with relatively small amounts of inversion, which suggest the need for incorporating more complex deformation scenarios into analog models. Fault framework development and its linkage to a specific mechanism (e.g., hanging-wall deformation because of oblique inversion) enables the predictive analysis of subseismic faulting and fracture distribution, which can impact our understanding of the petroleum systems in the Neuquén Basin's northern embayment, especially regarding the significant fault development within the Cuyo Group, which may impact the Los Molles petroleum system. Copyright © 2011. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-79951766700&doi=10.1306%2f06301009165&partnerID=40&md5=bdf1bde6881a705a3a48b1a1988dcb29
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13458
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:
Grimaldi G.O.,Dorobek S.L.. Fault framework and kinematic evolution of inversion structures: Natural examples from the Neuquén Basin, Argentina[J]. AAPG Bulletin,2011-01-01,95(1)