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 language | English |
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Title of host publication | Smart science for exploration and mining |
Editors | PJ Williams |
Place of Publication | QLD, Australia |
Publisher | JAMES COOK UNIV |
Pages | 879-881 |
Number of pages | 3 |
Volume | 1 and 2 |
ISBN (Print) | 9780980558685 |
Publication status | Published - 2010 |
Event | 10th Biennial SGA Meeting of the Society for Geology Applied to Mineral Deposits - Townsville, Australia Duration: 17 Aug 2009 → 20 Aug 2009 |
Conference
Conference | 10th Biennial SGA Meeting of the Society for Geology Applied to Mineral Deposits |
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Country/Territory | Australia |
City | Townsville |
Period | 17/08/09 → 20/08/09 |
Keywords
- Mount Painter Inlier
- poly-deformation
- 4D Noddy model
- Fault zone longevity
- Inversion modelling
- SOUTH-AUSTRALIA