DOI: 10.1306/06181411110
Scopus记录号: 2-s2.0-84941308978
论文题名: Cenozoic paleogeography of the Andean foreland and retroarc hinterland of Colombia
作者: Reyes-Harker A. ; Ruiz-Valdivieso C.F. ; Mora A. ; Ramírez-Arias J.C. ; Rodriguez G. ; De La Parra F. ; Caballero V. ; Parra M. ; Moreno N. ; Horton B.K. ; Saylor J.E. ; Silva A. ; Valencia V. ; Stockli D. ; Blanco V.
刊名: AAPG Bulletin
ISSN: 0149-1515
EISSN: 1558-9245
出版年: 2015
发表日期: 2015
卷: 99, 期: 8 起始页码: 1407
结束页码: 1453
语种: 英语
Scopus关键词: Deformation
; Petrography
; Deformation rates
; Depositional environment
; Eastern Cordillera
; Paleogeographic reconstruction
; Sediment source areas
; Sedimentary response
; Seismic information
; Thermochronology
; Stratigraphy
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: New biostratigraphic zonations, core descriptions, sandstone petrography, facies analysis, and seismic information are compared with published detrital and bedrock geo- and thermochro-nology to build a Cenozoic paleogeographic reconstruction of the Andean retroarc region of Colombia, encompassing the ancestral Central Cordillera, Middle Magdalena Valley, Eastern Cordillera, and Llanos basin. We identify uplifted sediment source areas, provenance domains, depositional environments, and thickness changes to propose a refined paleogeographic evolution of eastern Colombia. We conclude that Cenozoic evolution of the northernmost Andes includes (1) a period of contractional deformation focused in the Central Cordillera and Middle Magdalena Valley that may have started by the Late Cretaceous, although thermochronological data points to maximum shortening and exhumation during the late Paleocene; (2) a period of slower deformation rates or even tectonic quiescence during the middle Eocene; and (3) a renewed phase of contractional deformation from the late Eocene to the Pleistocene/Holocene expressed in provenance, bedrock thermochronology, and increased subsidence rates in the Llanos foreland. The sedimentary response in the Llanos foreland basin is controlled by source area proximity, exhumation and shortening rates, relationships between accommodation and sediment supply, as well as potential paleo-climate forcing. This new reconstruction changes the picture of Cenozoic basin evolution offered by previous reconstructions, providing an updated chronology of deformation, which is tied to a more precise understanding of basin evolution. Copyright ©2015. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84941308978&doi=10.1306%2f06181411110&partnerID=40&md5=5f8a5949931ab11532849d6957ee52d7
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13086
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:
Reyes-Harker A.,Ruiz-Valdivieso C.F.,Mora A.,et al. Cenozoic paleogeography of the Andean foreland and retroarc hinterland of Colombia[J]. AAPG Bulletin,2015-01-01,99(8)