DOI: 10.1306/01051009111
Scopus记录号: 2-s2.0-78149338348
论文题名: Migration of cenozoic deformation in the eastern cordillera of colombia interpreted from fission track results and structural relationships: Implications for petroleum systems
作者: Mora A. ; Horton B.K. ; Mesa A. ; Rubiano J. ; Ketcham R.A. ; Parra M. ; Blanco V. ; Garcia D. ; Stockli D.F.
刊名: AAPG Bulletin
ISSN: 0149-1906
EISSN: 1558-9636
出版年: 2010
发表日期: 2010
卷: 94, 期: 10 起始页码: 1543
结束页码: 1580
语种: 英语
Scopus关键词: Biostratigraphy
; Cenozoic
; Chronostratigraphy
; Colombia
; Colombians
; Cooling history
; Crustal deformations
; Early Miocene
; Eastern Cordillera
; Fission track
; Fission track analysis
; Foreland basin
; Inverse modeling
; Inverse models
; Late Eocene
; Late Oligocene
; Low temperatures
; Middle magdalena valley basins
; Modeling results
; Petroleum systems
; Structural geometry
; Structural relationship
; Structural traps
; Thrust structures
; Vitrinite reflectance
; Western boundary
; Deformation
; Fission reactions
; Inverse problems
; Landforms
; Phosphate minerals
; Silicate minerals
; Stratigraphy
; Time measurement
; Tectonics
; apatite
; Cenozoic
; deformation
; exhumation
; fission track dating
; low temperature
; petroleum
; thermochronology
; zircon
; Andes
; Colombia
; Cordillera Oriental [Andes]
; Magdalena Valley
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Previously unreleased fission-track results and regional structural relationships are used to interpret the migration of deformation during Cenozoic orogenesis in the Eastern Cordillera (Cordillera Oriental) of the Colombian Andes. Low-temperature thermochronological results are based on apatite and zircon fission-track analyses of 41 samples collected along vertical and horizontal transects across the Eastern Cordillera at A7°N latitude. Inverse modeling of fission-track results helps delimit the most probable cooling histories caused by exhumation linked to upper-crustal deformation. These inverse models are constrained by known structural geometries, chronostratigraphy, biostratigraphy, and vitrinite reflectance data. Fission-track data and modeling results indicate a close correspondence in the timing and style of deformation along the western and eastern flanks of the Eastern Cordillera. Eastdirected fold-thrust deformation along the eastern boundary with the Llanos foreland basin was underway by the late Oligocene and early Miocene. Similarly, west-directed fold-thrust structures along the western boundary with the intermontane middle Magdalena Valley Basin became active at approximately the same time. Less well known is the time of initial shortening within the axial segment of the Eastern Cordillera; although fission-track results suggest active exhumation by the early Miocene, shortening may have commenced much earlier during the late Eocene. Timing relationships for the Eastern Cordillera have important implications for the generation, migration, and accumulation of petroleum in the middle Magdalena Valley intermontane basin and the Llanos foreland basin. Our study provides a regional context to assess the timing of structural trap development and improve exploration and development of new and existing reservoirs in Colombia and analogous foldthrust systems elsewhere. Copyright © 2010. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-78149338348&doi=10.1306%2f01051009111&partnerID=40&md5=31cadf0c917faae7afd858bae3119e9e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13475
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:
Mora A.,Horton B.K.,Mesa A.,et al. Migration of cenozoic deformation in the eastern cordillera of colombia interpreted from fission track results and structural relationships: Implications for petroleum systems[J]. AAPG Bulletin,2010-01-01,94(10)