Rotation and exhumation of a thrust plane: Apatite fission-track data from the Glarus thrust, Switzerland

Abstract

Research Article| July 01, 1997 Rotation and exhumation of a thrust plane: Apatite fission-track data from the Glarus thrust, Switzerland M. K. Rahn; M. K. Rahn 1Institut für Mineralogie, Petrologie und Geochemie, University of Freiburg, Albertstrasse 23b, 79104 Freiburg, Germany Search for other works by this author on: GSW Google Scholar A. J. Hurford; A. J. Hurford 2London Fission Track Research Group, University and Birkbeck Colleges, Gower Street, London WC1E 6BT, United Kingdom Search for other works by this author on: GSW Google Scholar M. Frey M. Frey 3Mineralogisch-Petrographisches Institut, University of Basel, Bernoullistrasse 30, 4056 Basel, Switzerland Search for other works by this author on: GSW Google Scholar Author and Article Information M. K. Rahn 1Institut für Mineralogie, Petrologie und Geochemie, University of Freiburg, Albertstrasse 23b, 79104 Freiburg, Germany A. J. Hurford 2London Fission Track Research Group, University and Birkbeck Colleges, Gower Street, London WC1E 6BT, United Kingdom M. Frey 3Mineralogisch-Petrographisches Institut, University of Basel, Bernoullistrasse 30, 4056 Basel, Switzerland Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1997) 25 (7): 599–602. https://doi.org/10.1130/0091-7613(1997)025<0599:RAEOAT>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation M. K. Rahn, A. J. Hurford, M. Frey; Rotation and exhumation of a thrust plane: Apatite fission-track data from the Glarus thrust, Switzerland. Geology 1997;; 25 (7): 599–602. doi: https://doi.org/10.1130/0091-7613(1997)025<0599:RAEOAT>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Apatite fission-track ages and track-length measurements are presented from 22 samples from the Glarus Alps, eastern Switzerland, where maximum temperatures of 100 to 350 °C along an Alpine thrust plane were reached during late Tertiary metamorphism. With the exception of the northernmost sample, apatite ages are fully reset and range between 5 and 12 Ma. Apatite fission track data along a vertical profile and a horizontal profile indicate that isothermal planes were oriented parallel to the Glarus thrust plane and that the thrust plane cooled below a mean apatite fission track closure temperature of 110 °C at 9 Ma.The metamorphic pattern and fission-track data indicate a south-dipping thrust plane during the times of peak metamorphic conditions, postmetamorphic thrusting over a distance of ∼ 10 km, and gradational exhumation of the plane to a horizontal position at ca. 9 Ma. Ongoing rotation of the plane is reflected by the present dip of about 7°NNW. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.