Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    The brittle evolution of a major strike-slip fault associated with granite emplacement: A case study of the Leannan Fault, NW Ireland

    Access Status
    Fulltext not available
    Authors
    Kirkland, Chris
    Alsop, G.
    Prave, A.
    Date
    2008
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Kirkland, C. and Alsop, G. and Prave, A. 2008. The brittle evolution of a major strike-slip fault associated with granite emplacement: A case study of the Leannan Fault, NW Ireland. Journal of the Geological Society. 165 (1): pp. 341-352.
    Source Title
    Journal of the Geological Society
    DOI
    10.1144/0016-76492007-064
    ISSN
    0016-7649
    School
    Department of Applied Geology
    URI
    http://hdl.handle.net/20.500.11937/7226
    Collection
    • Curtin Research Publications
    Abstract

    NE-SW-trending sinistral strike-slip deformation is widespread throughout the Highlands of Scotland and NW Ireland and has been interpreted as a response to the subduction of Iapetus and continental collision. The southwestern continuation of the Great Glen Fault zone is marked in NW Ireland by the Leannan Fault. Field evidence derived from the Tullagh Point Granite indicates its intrusion along the fault during ductile sinistral shearing. U-Th-Pb zircon geochronology yields a crystallization age of 422 ± 2 Ma for this granite. Detailed analysis of fracture patterns throughout the Malin Head region demonstrates that sinistral fractures (F1) developed at an acute angle to the main fault strands. These fractures display oblique internal alignment of K-feldspar and are overprinted by dilatational quartz-filled joints at a similar orientation. The trend of these joints is consistent with c. 90° rotation of the s1 axes relative to F1 as a result of intrusion of the Malin Head Granite dated at 412 ± 3 Ma, Subsequent sinistral fractures developed after dissipation of granite-related forces. They define an anticlockwise rotation of the regional s1 and moved under a different stress tensor from F1. It is concluded that the Leannan Fault moved sinistrally at c. 422 Ma and after c. 412 Ma, and that granite emplacement had pronounced effects on the fault kinematics.

    Related items

    Showing items related by title, author, creator and subject.

    • Structural geology and gold mineralisation of the Ora Banda and Zuleika districts, Eastern Goldfields, Western Australia.
      Tripp, Gerard I. (2000)
      Late-Archaean deformation at Ora Banda 69km northwest of Kalgoorlie, Western Australia, resulted in upright folds (D2), ductile shear zones (D3), and a regional-scale brittle-ductile fault network (D4). Early low-angle ...
    • Neoarchean orogenic, magmatic and hydrothermal events in the Kalgoorlie-Kambalda area, Western Australia: constraints on gold mineralization in the Boulder Lefroy-Golden Mile fault system
      Mueller, A.; Hagemann, S.; McNaughton, Neal (2016)
      The Boulder Lefroy-Golden Mile (BLF-GMF) fault system is the most intensely mineralized structure (>2150 t Au to 2015) in the Archean Yilgarn Craton, Western Australia. The fault system links the Kalgoorlie and Kambalda ...
    • The kinematic history of the Khlong Marui and Ranong Faults, southern Thailand
      Watkinson, I.; Elders, Chris; Hall, R. (2008)
      The Khlong Marui Fault (KMF) and Ranong Fault (RF) are major NNE-trending strike-slip faults which dissect peninsular Thailand. They have been assumed to be conjugate to the NW-trending Three Pagodas Fault (TPF) and Mae ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.