English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/74901
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Basin architecture and growth folding of the NW Zagros early foreland basin during the Late Cretaceous and early Tertiary

AuthorsSaura, Eduard ; Vergés, Jaume ; Homke, S. ; Blanc, E.; Serra-Kiel, Josep; Bernaola, G.; Casciello, Emilio ; Fernández, Naiara; Romaire, I.; Casini, Giulio ; Embry, J. C.; Sharp, I.R.; Hunt, D.W.
Issue Date2011
PublisherGeological Society of London
CitationJournal of the Geological Society 168: 235- 250 (2011)
AbstractWe present and use the chronostratigraphy of 13 field logs and detailed mapping to constrain the evolution of the early Zagros foreland basin, in NW Iran. Large foraminifera, calcareous nannofossil, palynological and 87Sr/86Sr analysis supplied ages indicating a Campanian-early Eocene age of the basin infill, which is characterizd by a diachronous, southwestward migrating, shallowing upwards, mixed clastic- carbonate succession. Growth synclines and local palaeoslope variations indicate syndepositional folding from Maastrichtian to Eocene time and suggest forelandward migration of the deformation front. We also illustrate the basin architecture with a synthetic stratigraphic transect. From internal to external areas, time lines cross the formation boundaries from continental Kashkan red beds to Taleh Zang mixed clastic-carbonate platforms, Amiran slope deposits and basinal Gurpi-Pabdeh shales and marls. The foreland basin depocentres show a progressive migration from the Campanian to Eocene (c. 83-52.7 Ma), with rates of c. 2.4 mm a-1 during the early-middle Palaeocene (c. 65.5-58.7 Ma) increasing to c. 6 mm a-1 during the late Palaeocene- earliest Eocene (c. 58.7-52.8 Ma). Coeval subsidence remained at c. 0.27 mm a-1 during the first 12.7 Ma and decreased to c. 0.16 mm a-1 during the last 4.2 Ma of basin filling. Finally, we integrate our results with published large-scale maps and discuss their implications in the context of the Zagros orogeny. © 2011 Geological Society of London.
URIhttp://hdl.handle.net/10261/74901
DOI10.1144/0016-76492010-092
Identifiersdoi: 10.1144/0016-76492010-092
issn: 0016-7649
Appears in Collections:(ICTJA) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.