4D architecture of the Mount Painter Inlier

implications on the long-lived 3D structural evolution.

Robin J. Armit, P. G. Betts, L. Ailleres, B. F. Schaefer

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

    Abstract

    The Mount Painter Inlier records a protracted poly-deformational evolution from the Palaeoproterozoic to the Tertiary. Structural field mapping of the Palaeoproterozoic Radium Creek Metamorphics (Armit et al. Submitted), within the Inlier retain layer parallel D1 fabrics overprinted by D2 NE trending recumbent folds defined by high grade (M1) fabrics. A retrograde D3/M2 fabric axial planar to an upright fold generation overprints with syn-deformational mid-crustal ductile sinistral strike-slip and coeval A-type granite emplacement. D4 crenulates the early fabrics and is accompanied by ductile-brittle dextral strike-slip reactivation along the Paralana Fault Zone and begins the exhumation of the Palaeo-Mesoproterozoic Radium Creek Metamorphics. D5 produces type 2 interference patterns in the overlying Neoproterozoic sediments and upper crustal brittle sinistral faulting. Tertiary uplift continues due to thrusting along the pre-existing fault zone. 4D modelling of these observations using Noddy indicates a 3D architectural evolution that is comparable to the outcrop geology observed presently. Inversion modelling of the Noddy geophysical response further constrains the 3D architecture of the Inlier and the regional geodynamic evolution.

    Original languageEnglish
    Title of host publicationSmart science for exploration and mining
    EditorsPJ Williams
    Place of PublicationQLD, Australia
    PublisherJAMES COOK UNIV
    Pages879-881
    Number of pages3
    Volume1 and 2
    ISBN (Print)9780980558685
    Publication statusPublished - 2010
    Event10th Biennial SGA Meeting of the Society for Geology Applied to Mineral Deposits - Townsville, Australia
    Duration: 17 Aug 200920 Aug 2009

    Conference

    Conference10th Biennial SGA Meeting of the Society for Geology Applied to Mineral Deposits
    CountryAustralia
    CityTownsville
    Period17/08/0920/08/09

    Keywords

    • Mount Painter Inlier
    • poly-deformation
    • 4D Noddy model
    • Fault zone longevity
    • Inversion modelling
    • SOUTH-AUSTRALIA

    Cite this

    Armit, R. J., Betts, P. G., Ailleres, L., & Schaefer, B. F. (2010). 4D architecture of the Mount Painter Inlier: implications on the long-lived 3D structural evolution. In PJ. Williams (Ed.), Smart science for exploration and mining (Vol. 1 and 2, pp. 879-881). QLD, Australia: JAMES COOK UNIV.