UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

A new age model for the middle Eocene deep-marine Ainsa Basin, Spanish Pyrenees

Scotchman, JI; Bown, P; Pickering, KT; BouDagher-Fadel, M; Bayliss, NJ; Robinson, SA; (2015) A new age model for the middle Eocene deep-marine Ainsa Basin, Spanish Pyrenees. Earth-Science Reviews , 144 pp. 10-22. 10.1016/j.earscirev.2014.11.006. Green open access

[img] Text
Scotchman et al 2014 ESR AGE.pdf
Available under License : See the attached licence file.

Download (1MB)

Abstract

The middle Eocene Ainsa Basin, Spanish Pyrenees, comprises ~. 4. km of deep-marine sedimentary rocks belonging to the Hecho Group. Despite extensive study of these exemplary deep-marine clastic successions, there has been no comprehensive chronostratigraphic framework that provides primary ages for the submarine fan and related deposits. Here, we present a new composite basin stratigraphy based upon biostratigraphic analyses of the Upper Hecho Group submarine-fan and interfan deposits. Calcareous nannofossil data suggest that deposition of the Gerbe through to Guaso systems occurred during biozones NP14-16 (42.6 and 48.9. Ma based on our age model). Additional biostratigraphic ages from the Lower Hecho Group suggest that the entire Hecho Group no older than biozone NP13 (~. 51. Ma). The improved chronostratigraphic control enables correlations between submarine canyons and submarine-fans of the Ainsa and Jaca basins to be assessed. Our new age model provides a means of comparison of stratigraphic events with regional sections allowing a better understanding of the lateral and temporal evolution of these depositional systems from source-to-sink.

Type: Article
Title: A new age model for the middle Eocene deep-marine Ainsa Basin, Spanish Pyrenees
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.earscirev.2014.11.006
Publisher version: http://dx.doi.org/10.1016/j.earscirev.2014.11.006
Language: English
Additional information: Copyright © 2015. This manuscript version is published under a Creative Commons Attribution Non-commercial Non-derivative 4.0 International licence (CC BY-NC-ND 4.0). This licence allows you to share, copy, distribute and transmit the work for personal and non-commercial use providing author and publisher attribution is clearly stated. Further details about CC BY licences are available at http://creativecommons.org/licenses/by/4.0.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences
UCL > Provost and Vice Provost Offices > VP: Research
URI: https://discovery.ucl.ac.uk/id/eprint/1459744
Downloads since deposit
293Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item