John Stewart

PhD candidate

Project title
Integrated structural geology and geophysics of crustal-scale shear zones and their role in the kinematic evolution of the Gawler Craton

Supervisor/s
Dr. Peter Betts

Research interests

• Precambrian tectonics and crustal modelling
• Crustal shear zones and the products of highly strained environments
• Continental margin processes (terrane accretion and accretionary wedge tectonics)
• The evolution of eastern Gondwana

Publications

• Williams, H. A., Stewart, J. R., Betts, P. G., submitted to Tectonophysics. Curnamona Orocline
• Stewart, J. R., Betts, P. G. in review. Implications for Proterozoic plate margin evolution from the geophysical analysis and modeling of lithospheric shear zones within the western Gawler Craton, Australia. Submitted to Tectonophysics Feb 2009.
• Stewart, J. R., Betts, P. G., Collins, A. S., Schaefer, B. F., in review. Correlating progressive crustal reactivation and strain partitioning at multiple scales within the Tallacootra Shear Zone, southern Australia: integrated detailed structural and geophysical analysis. Submitted to Journal of Structural Geology May 2008
• Betts, P. Williams, H. Stewart, J. Ailleres, L. 2007. Kinematic analysis of aeromagnetic data: Looking at geophysical data in a structural context. Gondwana Research, 11, 582-583.
• Chalmers, N. Stewart, J. and Betts, P. 2007. Yarlbrinda and Yerda shear zones: structural and relative temporal constraints. MESA Journal, 46, 40-43.
• Stewart, J.R. (2003) A new look at the structure and stratigraphy of the Mount Camel Terrane, South Coast Karikari Peninsula, Northland, In: Cox, S. and Smith-Lyttle, B.(eds.) Abstracts & Programme, GSNZ Annual Conference, Dunedin, Geological Society of NZ Miscellaneous Publication 116A.

Abstracts

• Stewart, J. R. and Betts, P. G. (2008). A Gawler Orocline?: Yarlbrinda-Oolabinnia Shear Zone connections. AESC abstracts.
• Stewart, J. R. and Betts, P. G. (2008).Characteristics of deformed plutons within the Central Gawler Craton: Their relationship to shear zones and fault patterns. In: Reid, A., 2008. Primary Industries and Resources SA, University of Adelaide and Monash University, ARC Linkage Program: 2008 Reporting day Abstract volume. South Australia. Department of Primary Industries and Resources. Report Book 2007/1.
• Stewart, J. R. and Betts, P. G. (2006). Structural evolution of the polyphase Tallacootra Shear Zone and its influence on the evolution of Proterozoic South Australia. In Zhou et al. International Association of Gondwana Research Annual Symposium – Abstracts, University of Hong Kong.
• Stewart, J. R. and Betts, P. G. (2006). Structural evolution of the polyphase Tallacootra Shear Zone and its influence on the evolution of Proterozoic South Australia. In: Reid, A., 2007. Primary Industries and Resources SA, University of Adelaide and Monash University, ARC Linkage Program: 2006 Reporting day Abstract volume. South Australia. Department of Primary Industries and Resources. Report Book 2007/1.
• Stewart, J. R. and Betts, P. G. (2005). Integrated structural geology and geophysical analysis of crustal scale shear zones and their role in the evolution of the Western Gawler Craton. In: Reid, A. (ed), Primary Industries and Resources South Australia (PIRSA) Linkage Grant Meeting - Abstracts, University of Adelaide.
• Stewart, J. R. and Betts, P. G. (2005). Integrated structural and geophysical analysis of crustal scale shear zones and their role in the evolution of the Western Gawler Craton. In: Hancock et al. (eds), Structure Tectonics and Ore Mineralization Processes Abstract Volume, EGRU Contribution 64, 50. p. 130.
• Stewart, J. R. (2003). A new look at the structure and stratigraphy of the Mount Camel terrane, South Coast Karikari Peninsula, Northland. In: Mortimer, N. and Lee, D. (Eds.), Geological Society of New Zealand Inc 2003 annual conference, 1-4 December, University of Otago, Dunedin: programme & abstracts. GSNZ Miscellaneous Publications 116A

Professional Affiliations

• Geological Society of New Zealand (GSNZ)
• Geological Society of Australia (GSA)
• Geological Society of America (GSA)

Computer Skills

• MS Office, Adobe Illustrator, Vectorworks v.9.5, StereoWin, Geotec-B

Technical Skills

• Structural mapping/analysis

Personal Interests

• Rugby, fishing, surfing