Brendan Duffy
Room
418, Geological Sciences
Contact Details
Phone: +64 3 364 2987
Internal Phone: 7717
Email: brendan.duffy@pg.canterbury.ac.nz
Research Interests
Timor-Leste
My PhD research focuses on the Pliocene to Recent geodynamic evolution of Timor, an island orogen in the outer (non-volcanic) Banda Arc, just north of Darwin, Australia. I am particularly interested in the kinematics and mechanism of pervasive extension of this transpressional orogen. In addition to simple structural mapping and kinematic analyses, I am using sedimentology, particularly heavy minerals including zircon, to document the unroofing of the source area of the synorogenic sediments of Timor.
Greendale Fault
As well as working in Timor, I have also become involved in research into the releasing bend of the Greendale Fault. My work here has ranged from geodetic analysis including multi-temporal LiDAR and cadastral resurveying, through geomorphic mapping to reviewing the hydrogeology and borehole sedimentology in the light of the recent earthquake.
Thesis title
The Pliocene to Recent Geodynamic and Paleoceanographic Evolution of East Timor (read summary)
Posters and Summary
Please see a summary of my work.
Publications
Timor conference abstracts
Duffy, B & Quigley, M 2010, 'Extension at a collision-subduction transition: New insights from Timor', Geoscience Society of New Zealand Miscellaneous Publication 129A, eds. JD Eccles, MR Grigor, PWO Hoskin & DCH Hikuroa, Auckland, New Zealand, p. 89.
Duffy, B, Quigley, M, Nguyen, N & Shulmeister, J 2011d, 'The rise and fall of an arc-continent collisional orogen: insights from synorogenic sediments in Timor Leste', in AGU Fall Meeting, San Francisco, California.
Duffy, B, Quigley, MC, Haig, DW & Bassett, K 2009, 'Indonesian Geodynamics and Paleoceanography revealed in an exhumed Pliocene Forearc Basin, Timor Leste', Geosciences 09, eds. DJA Barrell & AJ Tulloch, Geological Society of New Zealand Miscellaneous Publication 128A, Oamaru, New Zealand, p. 62.
Greendale first author conference abstracts and publications
Duffy, B, Dissen, RV, Quigley, M, Litchfield, N, McInnes, C, Leprince, S, Barrell, D, Stahl, T & E.Bilderback 2011a, 'Co-seismic displacements from differencing and sub-pixel correlation of multi-temporal LiDAR and cadastral surveys: application to the Greendale Fault, Canterbury, New Zealand', AGU Fall Meeting, San Francisco, California.
Duffy, B, McInnes, C, Van Dissen, R, Litchfield, N, Barrell, D, Quigley, M, Bilderback, E & Stahl, T 2011b, 'Kinematics of the Greendale Fault releasing bend: Insights from cadastral and multi-temporal LiDAR surveys', in IUGG General Assembly - Earth on the Edge: Science for a Sustainable Planet, Melbourne, Australia.
Duffy, B, McInnes, C, Van Dissen, R, Litchfield, N, Barrell, D, Quigley, M, Bilderback, E, Stahl, T & Carson, N 2011c, 'Tectonic geomorphology, river avulsion and fault kinematics at the releasing termination of the strike slip Greendale Fault, Canterbury, New Zealand', Australia New Zealand Geomorphology Group, Oamaru, New Zealand.
Duffy, B, Quigley, M, Dissen, RV, Stahl, T, Leprince, S, McInnes, C, Barrell, D & Bilderback, E in review, 'Earthquake dynamics at a releasing fault bend from multi-temporal LiDAR'.
Greendale other publications
Barrell, D, Van Dissen, R, Quigley, M, Litchfield, N, Villamor, P, Furlong, K, Stahl, T, Duffy, B, Bilderback, E, Noble, D, Townsend, D, Begg, J, Jongens, R, Ries, W, Claridge, J, Klahn, A, Mackenzie, H, Smith, A, Hornblow, S, Nicol, R, Cox, S, Pedley, K & Langridge, R 2011a, 'It’s a ripper! Geomorphology of the Greendale Fault surface trace formed during the 04 Sept 2010 (NZST) Darfield (Canterbury) earthquake, New Zealand', Australia New Zealand Geomorphology Group, Oamaru, New Zealand.
Barrell, DJA, Litchfield, NJ, Townsend, DB, Quigley, M, Van Dissen, RJ, Cox, SC, Cosgrove, R, Furlong, K, Villamor, P, Begg, JG, Hemmings-Sykes, S, Jongens, R, Mackenzie, H, Stahl, T, Bilderback, E, Duffy, B, Lang, EMW, Nicol, R, Noble, D & Pedley, K 2011b, 'Strike-slip ground-surface rupture (Greendale Fault) associated with the 4 September 2010 Darfield earthquake, Canterbury, New Zealand', Quarterly Journal of Engineering Geology and Hydrology., vol. 44, pp. 283-91.
Quigley, M, Van Dissen, R, Villamor, P, Litchfield, N, Barrell, D, Furlong, K, Stahl, T, Duffy, B, Bilderback, E, Noble, D, Townsend, D, Begg, J, Jongens, R, Ries, W, Claridge, J, Klahn, A, Mackenzie, H, Smith, A, Hornblow, S, Nicol, R, Cox, S, Langridge, R & Pedley, K 2010a, 'Surface rupture of the greendale fault during the Darfield (Canterbury) earthquake, New Zealand: Initial findings', Bulletin of the New Zealand Society for Earthquake Engineering, vol. 43, no. 4, pp. 236-42. Retrieved 7 May 2011, from Scopus database.
Quigley, M, Villamor, P, Furlong, K, Beavan, J, Van Dissen, R, Litchfield, N, Stahl, T, Duffy, B, Bilderback, E, Noble, D, Barrell, D, Jongens, R & Cox, S 2010b, 'Previously unknown fault shakes New Zealand's South Island', EOS, vol. 91, no. 49, pp. 469-70. Retrieved 7 May 2011, from Scopus database.
Quigley, MC, Van Dissen, R, Litchfield, N, Villamor, P, Duffy, B, Barrell, D, Furlong, K, Stahl, T, Bilderback, E & Noble, D 2012, 'Surface rupture during the 2010 Mw 7.1 Darfield (Canterbury) earthquake: implications for fault rupture dynamics and seismic-hazard analysis', Geology, vol. 40, no. 1.
Van Dissen, R, Barrell, D, Litchfield, N, King, A, Quigley, M, Villamor, P, Furlong, K, Mackenzie, H, Klahn, A, Begg, J, Townsend, D, Stahl, T, Noble, D, Duffy, B, Bilderback, E, Jongens, R, Cox, S, Langridge, R, Ries, W, Dhakal, R, Smith, A, Nicol, R, Pedley, K, Henham, H & Hunter, R 2011, 'Surface rupture displacement on the Greendale Fault during the Mw 7.1 Darfield (Canterbury) Earthquake, New Zealand, and its impact on man-made structures', Pacific Conference on Earthquake Engineering (PCEE).
Van Dissen, R, Litchfield, N, Quigley, M, Villamor, P, Barrell, D, Furlong, K, Stahl, T, Duffy, B, Bilderback, E, Noble, D, Townsend, D, Begg, J, Jongens, R, Ries, W, Klahn, A, Mackenzie, H, Smith, A, Nicol, R, Cox, S, Pedley, K & Langridge, R 2010, 'Surface rupture displacement on the Greendale Fault during the Mw 7.1 Darfield (Canterbury) earthquake, New Zealand', GeoNZ 2010, Auckland, New Zealand.