My research interests are in the application of geophysical analytical techniques to geological problems. Currently, my research ranges across the spectrum of controlled-source seismology: from high-resolution marine reflection seismology to lithosphere-scale refraction seismology. Some of my main focuses these days are the examination of gas hydrates on the continental shelf, the use of high-resolution seismic methods to image seafloor sedimentary units, seismic oceanography (imaging water masses within the ocean), seismic imaging of sub-ice-shelf geology, and the characterisation of fault structures on the South Island of New Zealand.
Here are a few more detailed examples of the work going on in my research group.
Gas hydrates
New Zealand has extensive gas hydrate accumulations on its continental margins – primarily on the Hikurangi Margin off the east coast of the North Island. Extensive data sets of petroleum industry (and other) data facilitate the characterisation of these ice-like compounds of natural gas (mostly methane) and water within the ocean floor sediments. In collaboration with researchers from New Zealand's GNS Science and the National Institute of Water and Atmospheric Research (NIWA), the University of Auckland, GEOMAR Helmholtz Centre for Ocean Research in Germany, and elsewhere, we are (1) investigating the distribution and concentration of this significant component of the world's carbon cycle, (2) examining the role that hydrates play in global climate change, and (3) evaluating the link between hydrate deposits and sea floor instabilities.
Seismic investigations of seafloor Quaternary geology
High-resolution seismic imaging of the seafloor provides a way to tie direct samples of Quaternary sediments to the depositional processes that deposited them. We make use of the University of Otago's research vessels and our own multi-channel seismic acquisition system to produce seismic data sets that can be used to image sedimentary strata and plan direct sampling endeavours such as grab sampling or coring.
The high-frequency seismic capabilities of the University of Otago's research vessel RV Polaris II are being used in Fiordland and elsewhere around the south coast of New Zealand to examine features within the upper 500 m of the seafloor that may be related to underlying hydrate accumulations.
We also use seismic reflection methods to characterise the seafloor under floating ice shelves. Over the last few years, we have been working on the Ross Ice Shelf in Antarctica to image sub-ice shelf geology in order to develop drilling targets and their regional significance.
Geophysical investigations of fault geometry
Seismic methods can be used to constrain the position of faults at depth – primarily by imaging the geological layers that have been cut by a fault and interpreting how the fault has moved between them. In collaboration with structural geology colleagues, I am conducting research into the shallow structure of the Alpine Fault and other fault system on and around the South Island. In particular, we use the University of Otago's 48-channel land-based seismic system to collect reflection and refraction seismic datasets that characterise the sedimentary basins associated with the Alpine Fault, and the boomer seismic system on board RV Polaris II to image faults along the east coast of the South Island.
Current students
Jack Beagley (MSc) – Constraining late Quaternary sedimentary processes in Dusky Sound using seafloor seismic and sediment data (Co-supervised by Chris Moy and Gary Wilson)
Luke Carrington (MSc) – Structural integration of high-resolution seismic data from coastal Dunedin
Caitlin Hall (BSc Hons 2019, MSc ongoing) – Seismic and gravity modelling of the Kamb Ice Stream at Ross Ice Shelf Grounding Line, Antarctica
Will Oliver (MSc) – Seismic and gravity characterisation of Discovery Deep, Western Ross Ice Shelf, Antarctica
Former students
Joanna Cooper (PhD 2021) – Investigating water-mass mixing across the Sub-tropical Front east of the South Island using seismic oceanography (Co-supervised by Associate Professor Ross Vennell, Marine Science)
Risa Permatasari (MSc 2021) – Numerical Modelling of Groundwater Flow in the South Dunedin using Gravity Data
Francesco Turco (PhD 2021) – Gas hydrate investigations on the Hikurangi Margin (Co-supervised by Dr Gareth Crutchley, GNS Science)
Jasper Hoffmann (PhD 2020) – Seabed pockmarks and subsurface fluid migration at multiple scales: Investigations using hydroacoustic and seismic data. (Co-supervised by Dr Gareth Crutchley, GNS Science)
Oliver Rees (MSc 2020) - Characterising the Quaternary stratigraphy of the paleovalley underlying Dunedin and Otago Harbour. (Co-supervised by Dr Christina Riesselman)
Justin Lo (MSc 2019) – Reprocessing and interpretation of 1987 Moutere Depression vibroseis data: structural geology and seismic hazard implications.
Dannielle Fourgere (MSc 2019) – Visco-elastic finite difference modelling of gas hydrate systems in the Pegasus Sub-basin
Catherine Sangster (MSc 2019) – Seismic characterisation of the coastal environment near Dunedin: Seismic hazard and climate change implications (Co-supervised by Professor Mark Stirling)
Andrew Robertson (MSc 2018) – Seismic refraction and reflection analysis of ice-streamer data from the Ross Ice Shelf, Antarctica.
Oliver Rees (BSc Hons 2018) – Integration of seismic and borehole data from Otago Harbour (Co-supervised by Dr Christina Riesselman)
Adrienn Lukacs (PhD 2018) – Geophysical characterisation of the Alpine Fault through and beneath the Whataroa Valley, Westland, New Zealand
Tim Lutter (MSc 2018) – Integrating new and existing gravity data to model the structures of the upper crust of the Dunedin volcano
Patrick Fletcher (MSc 2018)– Gas hydrates in the Pegasus Basin; BSC (Hons) 2016)
Douglas Fraser (PhD 2017) – Seismic characterisation of hydrate / shallow gas systems associated with active margin sediments in the Pegasus Sub-basin, Hikurangi Margin, New Zealand (Co-supervised by Dr. Ingo Pecher, University of Auckland)
Andy Holt (MSc 2016) – Seismic characterisation of offshore faulting along the South Otago coast.
Ted Perkins (MSc 2016) – Seismic imaging of the Auckland Island eastern shelf Quaternary channel system
Cameron Abbey (MSc 2016) - Seismic characterisation of submarine canyons off the Otago coast
Patrick Fletcher (BSc Hons 2016) - A seismic and sedimentological study of Otago Harbour
Dylan Baker (MSc 2016) - Gas hydrates in the Pegasus Basin, New Zealand
Mike Krause (MSc 2016) – High-resolution multi-channel seismic boomer imaging of Holocene sedimentation in Lake Ohau
Patrick Lepine (MSc 2016) – Seismic characterisation of the sedimentary fill of the Whataroa glacial valley in the vicinity of the Alpine Fault, Westland
Laurine van Haastrecht (MSc 2016) - Characterisation of the Ross Ice Shelf in the vicinity of the upcoming Hot Water Drill Site 2.
Ben Ross (MSc in progress) – Glacial processes on the eastern fiords of the Auckland Islands (Co-supervised by Prof. Gary Wilson)
Jess Hillman (PhD 2015) - Investigation of seafloor depression formation on the Chatham Rise, New Zealand to better understand climate-driven methane release from gas hydrates
Christine McLachlan (MSc 2015) – Characterisation of the Saunders Ridges, Possible Otago Shelf transgressive beach ridges (Co-supervised by Prof. Gary Wilson)
James Ashley (MSc – in progress 2015) – New Zealand surface heat flow and its tectonic implications (Co-supervised by Dr. Rob Funnell, GNS Science).
Erin Dlabola (MSc 2014) – Understanding Last Glacial Maximum sediment accumulations in the New Zealand fiords from gravity coring and seismic data (Co-supervised by Prof. Gary Wilson)
Tim Lennon (MSc 2014)– Geophysical exploration offshore Stewart Island (sponsored by GeoSphere Ltd. through a TEC Enterprise Scholarship.)
Callum Bruce (MSc 2013) – Seismic imaging of natural gas occurrences and migration pathways in the seafloor of the Reinga Basin, west of Northland.
Betina Flemming (BSc Hons 2012) – Characterisation of the modern sand wedge on the South Otago shelf (Co-supervised by Dr. Chris Moy).
Matthew Smillie (MSc 2012) - Seismic oceanographical imaging of the ocean southeast of NZ.
Daniel Jones (MSc 2012) – Geophysical characterisation of the Foulden Hills Maar, Central Otago, New Zealand (Co-supervised by Prof. Gary Wilson).
Jeremy Kilner (MSc in progress)- Seismic imaging of eastern Otago active fault structures (Co-supervised by Prof. Richard Norris.)
Paul Viskovic (MSc 2011) - Fluid flux through the seafloor of the Great South Basin (sponsored by OMV New Zealand through a TEC Enterprise Scholarship.)
Callum Bruce (BSc Hons 2010) – Shallow marine seismic characterisation of coast-parallel faulting south of Dunedin.
Amy Shears (MSc – EnvSci 2010) - Characterisation of the sediment budget of Otago Harbour (Co-supervised by Dr. Abby Smith, Marine Science)
Gareth Crutchley (PhD 2009) - Gas hydrate characterisation on the Hikurangi Continental Margin (Co-supervised by Dr. Ingo Pecher, GNS Science).
Miko Fohrmann (PhD 2009) - Examination of marine seismic reflection data for the occurrence and distribution of gas hydrates on the continental margins of New Zealand (Co-supervised by Dr. Ingo Pecher, GNS Science)
Matt Hill (MSc 2007) - Geophysical and Geomorphological mapping of present and past landscapes, Lake Rotoiti, Nelson Lakes. (Co-supervised by Prof. Gary Wilson.)
Kim Senger (BSc Hons 2006) - Seismic interpretation of the Canterbury slope to identify links between gas hydrate occurrences and slope stability.
Lisa Johnston (MSc 2006) - McMurdo Ice Shelf Seismic Reflection Experiment, Antarctica. (Co-supervised by Dr. Gary Wilson.)
Hamish Blakemore (MSc 2006) - Shallow seismic investigation of the Oreti River aquifer, Southland.
Anna Leslie (MSc 2006) - Seismic characterisation of mineralisation at the Oceana Gold Ltd Gold Mine at Macraes, Otago.
Publications
Oliver, W., Gorman, A., Bowman, H., Black, J., & Tankersley, M. (2023). Discovery Deep, Antarctica, characterised by seismic and gravity surveys. Proceedings of the New Zealand-Australia Antarctic Science Conference (NZAASC): Latitudes of Change. (pp. 98). Retrieved from https://www.nzaasc.org
Conference Contribution - Published proceedings: Abstract
Gorman, A., Bowman, H., Black, J., Oliver, W., & Tankersley, M. (2023). Speeding up seismic reflection surveying of the seafloor below the Ross Ice Shelf with a towed streamer and surface detonations. Proceedings of the New Zealand-Australia Antarctic Science Conference (NZAASC): Latitudes of Change. (pp. 90). Retrieved from https://www.nzaasc.org
Conference Contribution - Published proceedings: Abstract
Warnke, F., Pecher, I. A., Hillman, J. I. T., Davy, B., Woelz, S., Gorman, A. R., & Strachan, L. J. (2023). Pseudo-3D cubes from densely spaced subbottom profiles via projection onto convex sets interpolation: An open-source workflow applied to a pockmark field. Geophysics, 88(6), F51-F69. doi: 10.1190/geo2023-0171.1
Journal - Research Article
Beagley, J. E., Gorman, A. R., Moy, C. M., & Wilson, G. S. (2023). Synthesis of geophysical and sediment core data enhances understanding of blue carbon in Tamatea/Dusky Sound and leads to insights on the paleoenvironment evolution of the fjord. Proceedings of the New Zealand Marine Sciences Society (NZMSS) Annual Meeting. (pp. 22). [Abstract]
Conference Contribution - Published proceedings: Abstract
Chorley, H., Levy, R., Naish, T., Lewis, A., Cox, S., Hemming, S., Ohneiser, C., Gorman, A., … Anderson, J., Dagg, B., & Lurcock, P. (2023). East Antarctic Ice Sheet variability during the middle Miocene Climate Transition captured in drill cores from the Friis Hills, Transantarctic Mountains. Geological Society of America Bulletin, 135(5-6), 1503-1529. doi: 10.1130/b36531.1
Journal - Research Article
Pecher, I., Crutchley, G., Kröger, K. F., Hillman, J., Mountjoy, J., Coffin, R., & Gorman, A. (2022). New Zealand’s gas hydrate systems. In J. Mienert, C. Berndt, A. M. Tréhu, A. Camerlenghi & C.-S. Liu (Eds.), World atlas of submarine gas hydrates in continental margins. (pp. 415-424). Cham, Switzerland: Springer. doi: 10.1007/978-3-030-81186-0_35
Chapter in Book - Research
Turco, F., Ladroit, Y., Watson, S. J., Seabrook, S., Law, C. S., Crutchley, G. J., … Gorman, A. R. (2022). Estimates of methane release from gas seeps at the southern Hikurangi Margin, New Zealand. Frontiers in Earth Science, 10, 834047. doi: 10.3389/feart.2022.834047
Journal - Research Article
Beagley, J., Gorman, A., Moy, C., & Wilson, G. (2022). Paleoenvironment and sediment basins in Dusky Sound, New Zealand characterised through seismic stratigraphy and sediment cores. In A. V. Zernack & J. Palmer (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.161A, (pp. 17). Wellington, New Zealand: Geoscience Society of New Zealand. [Abstract]
Conference Contribution - Published proceedings: Abstract
Gorman, A. R., Cooper, J., & Bowman, M. H. (2022). Oceanic near-surface temperatures derived from seismic reflection data: Enhancing the interpretability of water-column seismic images in the absence of direct oceanographic measurements. Proceedings of the Ocean Sciences Meeting (OSM). Retrieved from https://www.aslo.org/osm2022
Conference Contribution - Published proceedings: Abstract
Gorman, A. R., Hall, C., van Haastrecht, L., Black, J. A., Horgan, H., Dunbar, G., Wilson, G. S., … Dagg, B. (2022). Seismic and gravity constraints on the stratigraphy of the Siple Coast region underlying the Kamb Ice Stream, Antarctica. In A. V. Zernack & J. Palmer (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.161A, (pp. 96). Wellington, New Zealand: Geoscience Society of New Zealand. [Abstract]
Conference Contribution - Published proceedings: Abstract
Lacoua, L., Fry, B., Gorman, A., Liao, Y.-W. M., Penney, C., Foundotos, L., & Eberhart-Phillips, D. (2022). Improving large magnitudes for New Zealand. In A. V. Zernack & J. Palmer (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.161A, (pp. 158). Wellington, New Zealand: Geoscience Society of New Zealand. [Abstract]
Conference Contribution - Published proceedings: Abstract
Oliver, W. J., Gorman, A. R., Bowman, M. H., Black, J. A., & Tankersley, M. (2022). Seismic and gravity surveys characterise Discovery Deep, Antarctica. In A. V. Zernack & J. Palmer (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.161A, (pp. 200). Wellington, New Zealand: Geoscience Society of New Zealand. [Abstract]
Conference Contribution - Published proceedings: Abstract
Wavelet, E., Fry, B., Gorman, A., & McCurrah, S.-J. (2022). Tsunami early warning system: A study case of the north of New Zealand. In A. V. Zernack & J. Palmer (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.161A, (pp. 296). Wellington, New Zealand: Geoscience Society of New Zealand. [Abstract]
Conference Contribution - Published proceedings: Abstract
Cooper, J. K., Gorman, A. R., Bowman, M. H., & Smith, R. O. (2021). Temporal variability of thermohaline fine-structure associated with the subtropical front off the southeast coast of New Zealand in high-frequency short-streamer multi-channel seismic data. Frontiers in Marine Science, 8, 751385. doi: 10.3389/fmars.2021.751385
Journal - Research Article
Crutchley, G. J., Mountjoy, J. J., Hillman, J. I. T., Turco, F., Watson, S., Flemings, P. B., … Gorman, A. R., & Bialas, J. (2021). Upward-doming zones of gas hydrate and free gas at the bases of gas chimneys, New Zealand's Hikurangi margin. Journal of Geophysical Research: Solid Earth, 126(9). doi: 10.1029/2020JB021489
Journal - Research Article
Gilmer, G., Moy, C. M., Riesselman, C. R., Vandergoes, M., Jacobsen, G., Gorman, A. R., Tidey, E. J., & Wilson, G. S. (2021). Late Pleistocene and Holocene climate and environmental evolution of a subantarctic fjord ingression basin in the southwest Pacific. Quaternary Science Reviews, 253, 106698. doi: 10.1016/j.quascirev.2020.106698
Journal - Research Article
King, A., Lepine, P., Gorman, A. R., Prior, D. J., Lukács, A., Bowman, M. H., Fan, S., Robertson, A., Lutz, F., … Schjins, H. (2021). Shallow seismic reflection imaging of the Alpine Fault through late Quaternary sedimentary units at Whataroa, New Zealand. New Zealand Journal of Geology & Geophysics, 64(4), 505-517. doi: 10.1080/00288306.2020.1823433
Journal - Research Article
Lay, V., Buske, S., Townend, J., Kellett, R., Savage, M., Schmitt, D. R., … Gorman, A. R., … Kofman, R. (2021). 3D active source seismic imaging of the Alpine Fault zone and the Whataroa glacial valley in New Zealand. Journal of Geophysical Research: Solid Earth, 126, e2021JB023013. doi: 10.1029/2021JB023013
Journal - Research Article
Turco, F., Azevedo, L., Grana, D., Crutchley, G. J., & Gorman, A. R. (2021). Characterization of gas hydrate systems on the Hikurangi margin (New Zealand) through geostatistical seismic and petrophysical inversion. Geophysics, 86(6), R825-R838. doi: 10.1190/geo2021-0018.1
Journal - Research Article
Crutchley, G., Turco, F., Hillman, J., Mountjoy, J., Watson, S., Flemings, P., … Gorman, A., & Bialas, J. (2021). Diverse manifestations of concentrated gas hydrates in seismic reflection data at the Hikurangi Margin: Importance of seismic frequency. In A. V. Zernack & J. Palmer (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.158, (pp. 348). Wellington, New Zealand: Geoscience Society of New Zealand. [Abstract]
Conference Contribution - Published proceedings: Abstract
Gorman, A., Wilson, G., Horgan, H., Hall, C., Black, J., Dagg, B., … van Haastrecht, L. (2021). Constraining the stratigraphy of the seafloor sedimentary basin near the Kamb Ice Stream grounding line from seismic and gravity data. Proceedings of the New Zealand Antarctic Science Conference: Connecting through change. (pp. 75). Retrieved from https://www.antarcticanz.govt.nz/nzasc21
Conference Contribution - Published proceedings: Abstract
Hill, T. A., Gorman, A. R., Watson, S. J., Mountjoy, J. J., Hillman, J. I. T., & Woelz, S. (2021). Determining the preconditioning and triggering mechanisms of submarine landslides on anticlinal thrust ridges, offshore of the southern Wairarapa coast. In A. V. Zernack & J. Palmer (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.158, (pp. 108). Wellington, New Zealand: Geoscience Society of New Zealand. [Abstract]
Conference Contribution - Published proceedings: Abstract
Levy, R., Patterson, M., Dunbar, G., Golledge, N., Horgan, H., Hulbe, C., … Gorman, A., … Wilson, G. (2021). The SWAIS 2C Project: Sensitivity of the West Antarctic Ice Sheet in a warmer world. Proceedings of the New Zealand Antarctic Science Conference: Connecting through change. (pp. 73). Retrieved from https://www.antarcticanz.govt.nz/nzasc21
Conference Contribution - Published proceedings: Abstract
Thomas, M., & Gorman, A. (2021). Seismic imaging of quaternary sedimentary wedge at the mouth of the Clutha River. In A. V. Zernack & J. Palmer (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.158, (pp. 284). Wellington, New Zealand: Geoscience Society of New Zealand. [Abstract]
Conference Contribution - Published proceedings: Abstract
Hoffmann, J. J. L., Schneider von Deimling, J., Schröder, J. F., Schmidt, M., Held, P., Crutchley, G. J., … Gorman, A. R. (2020). Complex eyed pockmarks and submarine groundwater discharge revealed by acoustic data and sediment cores in Eckernförde Bay, SW Baltic Sea. Geochemistry, Geophysics, Geosystems, 21(4), e2019GC008825. doi: 10.1029/2019GC008825
Journal - Research Article
Lay, V., Buske, S., Bodenburg, S. B., Townend, J., Kellett, R., Savage, M. K., … Gorman, A. R., & Kofman, R. S. (2020). Seismic P wave velocity model from 3-D surface and borehole seismic data at the Alpine Fault DFDP-2 drill site (Whataroa, New Zealand). Journal of Geophysical Research: Solid Earth, 125(4), e2019JB018519. doi: 10.1029/2019jb018519
Journal - Research Article
Perkins, E. J., Gorman, A. R., Tidey, E. J., Wilson, G. S., Ohneiser, C., Moy, C. M., Riesselman, C. R., Gilmer, G., & Ross, B. S. (2020). High-resolution seismic imaging reveals infill history of a submerged Quaternary fjord system in the subantarctic Auckland Islands, New Zealand. Quaternary Research, 93(1), 255-266. doi: 10.1017/qua.2019.58
Journal - Research Article
Turco, F., Crutchley, G. J., Gorman, A. R., Mountjoy, J. J., Hillman, J. I. T., & Woelz, S. (2020). Seismic velocity and reflectivity analysis of concentrated gas hydrate deposits on the southern Hikurangi Margin (New Zealand). Marine & Petroleum Geology, 120, 104572. doi: 10.1016/j.marpetgeo.2020.104572
Journal - Research Article
Brenna, M., Ohneiser, C., Gorman, A., & Palin, M. (2020). Geothermal energy from extinct volcanoes: The Dunedin experiment. Proceedings of the 14th Annual Otago Energy Research Centre (OERC) Symposium: New Energy Futures post COVID-19. Retrieved from https://www.otago.ac.nz/oerc
Conference Contribution - Published proceedings: Abstract
Gorman, A., Riesselman, C., Fletcher, P., Rees, O., & Bowman, H. (2020). Why so deep? Seismic imaging of the sedimentary infill of Otago Harbour reveals a >150-m-deep record of Quaternary environmental change. In K. N. Bassett, A. R. L. Nichols & C. H. Fenton (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.157A, (pp. 115). Wellington, New Zealand: Geoscience Society of New Zealand. [Abstract]
Conference Contribution - Published proceedings: Abstract
Gorman, A., Wilson, G., Horgan, H., van Haastrecht, L., Hall, C., Dagg, R., … Tankersley, M. (2020). Seismic characterisation of the seafloor stratigraphy beneath the Ross Ice Shelf near the Kamb Ice Stream grounding line. Proceedings of the XXXVI Scientific Committee on Antarctic Research (SCAR) 9th Open Science Conference: Antarctic Science: Global Connections. 728. Retrieved from https://www.scar2020.org
Conference Contribution - Published proceedings: Abstract
Hill, T., Watson, S., Mountjoy, J., Hillman, J., Woelz, S., & Gorman, A. (2020). A seafloor analysis at locations of known gas hydrate expulsion, Wairarapa sector of the Hikurangi Margin. In K. N. Bassett, A. R. L. Nichols & C. H. Fenton (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.157A, (pp. 129). Wellington, New Zealand: Geoscience Society of New Zealand. [Abstract]
Conference Contribution - Published proceedings: Abstract
Hoffmann, J., Schneider von Deimling, J., Schröder, J., Schmidt, M., Held, P., Scholten, J., Crutchley, G., & Gorman, A. (2020). Complex eyed pockmarks associated with submarine groundwater discharge in gaseous muddy sediments, Eckernförde Bay, SW Baltic Sea. Proceedings of European Geosciences Union (EGU): Sharing Geoscience Online. EGU2020-12332. doi: 10.5194/egusphere-egu2020-12332
Conference Contribution - Published proceedings: Abstract
Pecher, I., Davy, B., Hillman, J., Stott, L., Coffin, R., Gorman, A., … TAN2006 Scientific Party. (2020). Seafloor pockmarks on the Chatham Rise and Bounty Trough: An overview on R/V Tangaroa Voyage 2006. In K. N. Bassett, A. R. L. Nichols & C. H. Fenton (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.157A, (pp. 214). Wellington, New Zealand: Geoscience Society of New Zealand. [Abstract]
Conference Contribution - Published proceedings: Abstract
Turco, F., Crutchley, G., Azevedo, L., Gorman, A., Grana, D., Mountjoy, J., Hillman, J., & Woelz, S. (2020). Concentrated gas hydrate deposits in thrust-related anticlines: Insights into their evolution and assessment of hydrate volumes from the southern Hikurangi Margin. In K. N. Bassett, A. R. L. Nichols & C. H. Fenton (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.157A, (pp. 299). Wellington, New Zealand: Geoscience Society of New Zealand. [Abstract]
Conference Contribution - Published proceedings: Abstract
Turco, F., Gorman, A., Crutchley, G., Azevedo, L., Grana, D., & Pecher, I. (2020). Methane hydrate saturations at the Southern Hikurangi margin (New Zealand) estimated from seismic and rock physics inversion. Proceedings of European Geosciences Union (EGU): Sharing Geoscience Online. EGU2020-11486. doi: 10.5194/egusphere-egu2020-11486
Conference Contribution - Published proceedings: Abstract
Antriasian, A., Harris, R. N., Tréhu, A. M., Henrys, S. A., Phrampus, B. J., Lauer, R., Gorman, A. R., … Barker, D. (2019). Thermal regime of the Northern Hikurangi margin, New Zealand. Geophysical Journal International, 216(2), 1177-1190. doi: 10.1093/gji/ggy450
Journal - Research Article
Crutchley, G. J., Kroeger, K. F., Pecher, I. A., & Gorman, A. R. (2019). How tectonic folding influences gas hydrate formation: New Zealand's Hikurangi subduction margin. Geology, 47(1), 39-42. doi: 10.1130/G45151.1
Journal - Research Article
Hoffmann, J. J. L., Gorman, A. R., & Crutchley, G. J. (2019). Seismic evidence for repeated vertical fluid flow through polygonally faulted strata in the Canterbury Basin, New Zealand. Marine & Petroleum Geology, 109, 317-329. doi: 10.1016/j.marpetgeo.2019.06.025
Journal - Research Article
Lukács, A., Gorman, A. R., & Norris, R. J. (2019). Quaternary structural and paleo-environmental evolution of the Alpine Fault near Haast, New Zealand, from 2D seismic reflection and gravity data. New Zealand Journal of Geology & Geophysics, 62(2), 229-247. doi: 10.1080/00288306.2018.1544153
Journal - Research Article
Crutchley, G. J., Mountjoy, J. J., Hillman, J., Davy, B. W., Watson, S., Woelz, S., … Turco, F., & Gorman, A. R. (2019). Concentrated gas hydrates in anticlines adjacent to high-sediment-flux submarine canyons: New Zealand's Hikurangi subduction margin. Proceedings of the American Geophysical Union (AGU) Fall Meeting. OS43A-O6. Retrieved from https://agu.confex.com/
Conference Contribution - Published proceedings: Abstract
Fan, S., Prior, D., Bowman, H., Craw, L., Kim, D., King, A., Forbes, M., … Gorman, A., & Hulbe, C. (2019). Constraining the large-scale crystallographic preferred orientation (CPO) of a fast-shearing Antarctic ice glacier from seismic anisotropy. Proceedings of the New Zealand Antarctic Science Conference: Our future in focus. (pp. 82). New Zealand Antarctic Research Institute. Retrieved from https://www.antarcticanz.govt.nz/science/new-zealand-antarctic-science-conference-2019
Conference Contribution - Published proceedings: Abstract
Gorman, A., Riesselman, C., Rees, O., & Fletcher, P. (2019). Seismic imaging of the Quaternary stratigraphic infill history of a terrestrially isolated coastal inlet: Otago Harbour, New Zealand. Geophysical Research Abstracts, 21, EGU2019-13685. [Abstract]
Conference Contribution - Published proceedings: Abstract
Gorman, A., Wilson, G., van Haastrecht, L., Dagg, R., Hall, C., Davies, R., & Horgan, H. (2019). Initial results of the 2018 Kamb Ice Stream seismic survey on the Siple Coast, Ross Ice Shelf. Proceedings of the New Zealand Antarctic Science Conference: Our Future in Focus. (pp. 31-32). Retrieved from https://www.antarcticanz.govt.nz/science/new-zealand-antarctic-science-conference-2019
Conference Contribution - Published proceedings: Abstract
Hall, C., Wilson, G., Gorman, A., van Haastrecht, L., & Dagg, B. (2019). Initial results of the 2018 Kamb Ice Stream gravity survey on the Siple Coast, Ross Ice Shelf. Proceedings of the New Zealand Antarctic Science Conference: Our future in focus. (pp. 32-33). New Zealand Antarctic Research Institute. Retrieved from https://www.antarcticanz.govt.nz/science/new-zealand-antarctic-science-conference-2019
Conference Contribution - Published proceedings: Abstract
Hoffmann, J., Gorman, A., Crutchley, G., Micallef, A., Mountjoy, J., & Averes, T. (2019). Pockmark formation and modification processes on the Canterbury Shelf, New Zealand. Geophysical Research Abstracts, 21, EGU2019-12820. [Abstract]
Conference Contribution - Published proceedings: Abstract
Hoffmann, J., Schneider von Deimling, J., Schröder, J., Schmidt, M., Held, P., Scholten, J., … Gorman, A. (2019). Acoustic investigations of pockmarks and submarine groundwater discharge in gaseous muddy sediments. In P. J. J. Kamp & A. Pittari (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.154A, (pp. 86). Wellington, New Zealand: GSNZ. [Abstract]
Conference Contribution - Published proceedings: Abstract
Kowal, A., Stirling, M., Gorman, A., & Wotherspoon, L. (2019). Strong ground motions simulations for Dunedin: Recent progress. Proceedings of the 4th Te Hiranga Rū QuakeCoRE Annual Meeting. (pp. 23). Retrieved from http://www.quakecore.nz
Conference Contribution - Published proceedings: Abstract
Rees, O. W., Gorman, A. R., & Riesselman, C. R. (2019). Characterising the quaternary stratigraphic infill of Dunedin. In P. J. J. Kamp & A. Pittari (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.154A, (pp. 164). Wellington, New Zealand: GSNZ. [Abstract]
Conference Contribution - Published proceedings: Abstract
Wilson, G., Hulbe, C., Horgan, H., Levy, R., Gorman, A., Caratori Tontini, F., Dagg, B., … Hall, C. (2019). Anatomy of the grounding line of the West Antarctic Ice Sheet at the Kamb Ice Stream. Proceedings of the New Zealand Antarctic Science Conference: Our future in focus. (pp. 26). New Zealand Antarctic Research Institute. Retrieved from https://www.antarcticanz.govt.nz/science/new-zealand-antarctic-science-conference-2019
Conference Contribution - Published proceedings: Abstract
Crutchley, G. J., Kroeger, K. F., Pecher, I. A., Mountjoy, J. J., & Gorman, A. R. (2018). Gas hydrate formation amid submarine canyon incision: Investigations from New Zealand's Hikurangi subduction margin. Geochemistry, Geophysics, Geosystems, 18(12), 4299-4316. doi: 10.1002/2017gc007021
Journal - Research Article
Gorman, A. R., Vennell, R., Holbrook, W. S., & Frew, R. (2018). Seismic characterization of oceanic water masses, water mass boundaries and mesoscale eddies SE of New Zealand. Journal of Geophysical Research: Oceans, 123(2), 1519-1532. doi: 10.1002/2017JC013459
Journal - Research Article
Hillman, J. I. T., Klaucke, I., Pecher, I. A., Gorman, A. R., Schneider von Deimling, J., & Bialas, J. (2018). The influence of submarine currents associated with the Subtropical Front upon seafloor depression morphologies on the eastern passive margin of South Island, New Zealand. New Zealand Journal of Geology & Geophysics, 61(1), 112-125. doi: 10.1080/00288306.2018.1434801
Journal - Research Article
Hillman, J. I. T., Lamarche, G., Pallentin, A., Pecher, I. A., Gorman, A. R., & Schneider von Deimling, J. (2018). Validation of automated supervised segmentation of multibeam backscatter data from the Chatham Rise, New Zealand. Marine Geophysical Research, 39(1-2), 205-227. doi: 10.1007/s11001-016-9297-9
Journal - Research Article
Kaulfuss, U., Lee, D. E., Wartho, J.-A., Bowie, E., Lindqvist, J. K., Conran, J. G., Bannister, J. M., … Gorman, A. R. (2018). Geology and palaeontology of the Hindon Maar Complex: A Miocene terrestrial fossil Lagerstätte in southern New Zealand. Palaeogeography, Palaeoclimatology, Palaeoecology, 500, 52-68. doi: 10.1016/j.palaeo.2018.03.022
Journal - Research Article
Levy, R. H., Dunbar, G. B., Vandergoes, M. J., Howarth, J. D., Kingan, T., Pyne, A. R., … Dagg, B., … Kenton, E., Little, S., … Moy, C., … Fitzsimons, S., … Gorman, A. R., … Nelson, F., Purdie, J., … Wilson, G. S. (2018). A high-resolution climate record spanning the past 17 000 years recovered from Lake Ohau, South Island, New Zealand. Scientific Drilling, 24, 41-50. doi: 10.5194/sd-24-41-2018
Journal - Research Article
Clar, S., Gorman, A., & Smith, R. (2018). Large-amplitude internal solitary waves on the South Island's continental margin. In M. Sagar & J. Prebble (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.151A, (pp. 47). Wellington, New Zealand: GSNZ. [Abstract]
Conference Contribution - Published proceedings: Abstract
Clar, S., Gorman, A., & Smith, R. (2018). Seismic imaging of stationary mesoscale eddies east of Cook Strait, New Zealand. Geophysical Research Abstracts, 20, EGU2018-4103. [Abstract]
Conference Contribution - Published proceedings: Abstract
Crutchley, G., Mountjoy, J., Davy, B., Hillman, J., Stewart, L., Watson, S., … Turco, F., Fougere, D., … Gorman, A., & Pecher, I. (2018). Hydee Voyage I: First results of a gas hydrate research voyage aboard RV Tangaroa, September 2018. In M. Sagar & J. Prebble (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.151A, (pp. 59). Wellington, New Zealand: GSNZ. [Abstract]
Conference Contribution - Published proceedings: Abstract
Forbes, M., Hulbe, C. L., Gragg, K., Rack, W., Leonard, G. H., Gorman, A. R., & Ohneiser, C. (2018). What is this ice: Geophysical investigations of a thick accreted basal ice layer at HWD-2, Ross Ice Shelf, Antarctica. Proceedings of the American Geophysical Union (AGU) Fall Meeting. C21C-1359. Retrieved from https://fallmeeting.agu.org/2018
Conference Contribution - Published proceedings: Abstract
Fougere, D., & Gorman, A. (2018). Finite-difference modelling of gas hydrate deposits in the Uruti Basin on the Hikurangi Accretionary Margin, New Zealand. In M. Sagar & J. Prebble (Eds.), Geoscience Society of New Zealand Miscellaneous Publication.151A, (pp. 83). Wellington, New Zealand: GSNZ. [Abstract]
Conference Contribution - Published proceedings: Abstract
Browne, I. M., Moy, C. M., Riesselman, C. R., Neil, H. L., Curtin, L. G., Gorman, A. R., & Wilson, G. S. (2017). Late Holocene intensification of the westerly winds at the subantarctic Auckland Islands (51° S), New Zealand. Climate of the Past, 13(10), 1301-1322. doi: 10.5194/cp-13-1301-2017
Journal - Research Article
Jones, D. A., Wilson, G. S., Gorman, A. R., Fox, B. R. S., Lee, D. E., & Kaulfuss, U. (2017). A drill-hole calibrated geophysical characterisation of the 23 Ma Foulden Maar stratigraphic sequence, Otago, New Zealand. New Zealand Journal of Geology & Geophysics, 60(4), 465-477. doi: 10.1080/00288306.2017.1369130
Journal - Research Article
Barnes, P. M., Pickrill, R. A., Bostock, H. C., Dlabola, E. K., Gorman, A. R., & Wilson, G. S. (2016). Relict proglacial deltas in Bradshaw and George sounds, Fiordland, New Zealand. In J. A. Dowdeswell, M. Canals, M. Jakobsson, B. J. Todd, E. K. Dowdeswell & K. A. Hogan (Eds.), Atlas of submarine glacial landforms: Modern, quaternary and ancient (Geological Society Memoir No. 46). (pp. 91-92). London, UK: Geological Society. doi: 10.1144/M46.59
Chapter in Book - Research
Barnes, P. M., Ghisetti, F. C., & Gorman, A. R. (2016). New insights into the tectonic inversion of North Canterbury and the regional structural context of the 2010–2011 Canterbury earthquake sequence, New Zealand. Geochemistry, Geophysics, Geosystems, 17, 324-345. doi: 10.1002/2015GC006069
Journal - Research Article
Fraser, D. R. A., Gorman, A. R., Pecher, I. A., Crutchley, G. J., & Henrys, S. A. (2016). Gas hydrate accumulations related to focused fluid flow in the Pegasus Basin, southern Hikurangi Margin, New Zealand. Marine & Petroleum Geology, 77, 399-408. doi: 10.1016/j.marpetgeo.2016.06.025
Journal - Research Article
Lay, V., Buske, S., Lukács, A., Gorman, A. R., Bannister, S., & Schmitt, D. R. (2016). Advanced seismic imaging techniques characterize the Alpine Fault at Whataroa (New Zealand). Journal of Geophysical Research: Solid Earth, 121(12), 8792-8812. doi: 10.1002/2016JB013534
Journal - Research Article
Crutchley, G. J., Mountjoy, J. J., Pecher, I. A., Gorman, A. R., & Henrys, S. A. (2016). Submarine slope instabilities coincident with shallow gas hydrate systems: Insights from New Zealand examples. In G. Lamarche, J. Mountjoy, S. Bull, T. Hubble, S. Krastel, E. Lane, … S. Woelz (Eds.), Submarine mass movements and their consequences: 7th international symposium (Vol. 6).41, (pp. 401-409). Cham, Switzerland: Springer. doi: 10.1007/978-3-319-20979-1_40
Conference Contribution - Published proceedings: Full paper
Crutchley, G. J., Fraser, D. R. A., Pecher, I. A., Gorman, A. R., Maslen, G., & Henrys, S. A. (2015). Gas migration into gas hydrate-bearing sediments on the southern Hikurangi margin of New Zealand. Journal of Geophysical Research: Solid Earth, 120(2), 725-743. doi: 10.1002/2014JB011503
Journal - Research Article
Dlabola, E. K., Wilson, G. S., Gorman, A. R., Riesselman, C. R., & Moy, C. M. (2015). A post-glacial relative sea-level curve from Fiordland, New Zealand. Global & Planetary Change, 131, 104-114. doi: 10.1016/j.gloplacha.2015.05.010
Journal - Research Article
Hillman, J. I. T., Gorman, A. R., & Pecher, I. A. (2015). Geostatistical analysis of seafloor depressions on the southeast margin of New Zealand’s South Island: Investigating the impact of dynamic near seafloor processes on geomorphology. Marine Geology, 360, 70-83. doi: 10.1016/j.margeo.2014.11.016
Journal - Research Article
Gorman, A. R., Hill, M. G., Orpin, A. R., Koons, P. O., Norris, R. J., Landis, C. A., … Osterberg, E. C. (2013). Quaternary shelf structures SE of the South Island, imaged by high-resolution seismic profiling. New Zealand Journal of Geology & Geophysics, 56(2), 68-82. doi: 10.1080/00288306.2013.772906
Journal - Research Article
Crutchley, G. J., Gorman, A. R., Pecher, I. A., Toulmin, S., & Henrys, S. A. (2011). Geological controls on focused fluid flow through the gas hydrate stability zone on the southern Hikurangi Margin of New Zealand, evidenced from multi-channel seismic data. Marine & Petroleum Geology, 28(10), 1915-1931. doi: 10.1016/j.marpetgeo.2010.12.005
Journal - Research Article
Campbell, F. M., Ghisetti, F., Kaiser, A. E., Green, A. G., Horstmeyer, H., & Gorman, A. R. (2010). Structure and evolution of the seismically active Ostler Fault Zone (New Zealand) based on interpretations of multiple high resolution seismic reflection profiles. Tectonophysics, 495(3-4), 195-212. doi: 10.1016/j.tecto.2010.09.016
Journal - Research Article
Campbell, F. M., Kaiser, A., Horstmeyer, H., Green, A. G., Ghisetti, F., Gorman, A. R., … Nobes, D. C. (2010). Processing and preliminary interpretation of noisy high-resolution seismic reflection/refraction data across the active Ostler Fault zone, South Island, New Zealand. Journal of Applied Geophysics, 70(4), 332-342. doi: 10.1016/j.jappgeo.2009.05.001
Journal - Research Article
Crutchley, G. J., Geiger, S., Pecher, I. A., Gorman, A. R., Zhu, H., & Henrys, S. A. (2010). The potential influence of shallow gas and gas hydrates on sea floor erosion of Rock Garden, an uplifted ridge offshore of New Zealand. Geo-Marine Letters, 30(3/4), 283-303. doi: 10.1007/s00367-010-0186-y
Journal - Research Article
Crutchley, G. J., Pecher, I. A., Gorman, A. R., Henrys, S. A., & Greinert, J. (2010). Seismic imaging of gas conduits beneath seafloor seep sites in a shallow marine gas hydrate province, Hikurangi Margin, New Zealand. Marine Geology, 272, 114-126. doi: 10.1016/j.margeo.2009.03.007
Journal - Research Article
Gorman, A. R., & Senger, K. (2010). Defining the updip extent of the gas hydrate stability zone on continental margins with low geothermal gradients. Journal of Geophysical Research, 115, B07105. doi: 10.1029/2009jb006680
Journal - Research Article
Pecher, I. A., Henrys, S. A., Wood, W. T., Kukowski, N., Crutchley, G. J., Fohrmann, M., Kilner, J., Senger, K., Gorman, A. R., … Faure, K. (2010). Focussed fluid flow on the Hikurangi Margin, New Zealand: Evidence from possible local upwarping of the base of gas hydrate stability. Marine Geology, 272(1-4), 99-113. doi: 10.1016/j.margeo.2009.10.006
Journal - Research Article
Pysklywec, R. N., Ellis, S. M., & Gorman, A. R. (2010). Three-dimensional mantle lithosphere deformation at collisional plate boundaries: A subduction scissor across the South Island of New Zealand. Earth & Planetary Science Letters, 289(3/4), 334-346. doi: 10.1016/j.epsl.2009.11.022
Journal - Research Article
Fohrmann, M., Gorman, A. R., & Pecher, I. A. (2009). Seismic characterization of the Fiordland gas-hydrate province, New Zealand. In T. Collett, A. Johnson, C. Knapp & R. Boswell (Eds.), Natural gas hydrates: Energy resource potential and associated geologic hazards (AAPG Memoir 89). (pp. 467-480). Tulsa, OK: American Association of Petroleum Geologists. doi: 10.1306/13201117M893355
Chapter in Book - Research
Ghisetti, F. C., Gorman, A. R., Grasso, M., & Vezzani, L. (2009). Imprint of foreland structure on the deformation of a thrust sheet: The Plio-Pleistocene Gela Nappe (southern Sicily, Italy). Tectonics, 28, TC4015. doi: 10.1029/2008tc002385
Journal - Research Article
Cox, S. C., & Gorman, A. (2009). The application of geophysical methods in exploration for gold in Otago. Australasian Institute of Mining and Metallurgy New Zealand Branch Annual Conference. (pp. 111-120). Carlton, Australia: AusIMM. [Full Paper]
Conference Contribution - Published proceedings: Full paper
Hornbach, M. J., Saffer, D. M., Holbrook, W. S., Van Avendonk, H. J. A., & Gorman, A. R. (2008). Three-dimensional seismic imaging of the Blake Ridge methane hydrate province: Evidence for large, concentrated zones of gas hydrate and morphologically driven advection. Journal of Geophysical Research, 113, B07101. doi: 10.1029/2007JB005392
Journal - Research Article
Johnston, L., Wilson, G. S., Gorman, A. R., Henrys, S. A., Horgan, H., Clark, R., & Naish, T. R. (2008). Cenozoic basin evolution beneath the southern McMurdo Ice Shelf, Antarctica. Global & Planetary Change, 62, 61-76. doi: 10.1016/j.gloplacha.2007.11.004
Journal - Research Article
Crutchley, G. J., Gorman, A. R., & Fohrmann, M. (2007). Investigation of the role of gas hydrates in continental slope stability west of Fiordland, New Zealand. New Zealand Journal of Geology & Geophysics, 50(4), 357-364. doi: 10.1080/00288300709509842
Journal - Research Article
Ghisetti, F. C., Gorman, A. R., & Sibson, R. H. (2007). Surface breakthrough of a basement fault by repeated seismic slip episodes: The Ostler Fault, South Island, New Zealand. Tectonics, 26, TC6004.
Journal - Research Article
Gorman, A. R., Németh, B., Clowes, R. M., & Hajnal, Z. (2006). An investigation of upper mantle heterogeneity beneath the Archaean and Proterozoic crust of western Canada from Lithoprobe controlled-source seismic experiments. Tectonophysics, 416, 187-207.
Journal - Research Article
Gorman, A. R., Pecher, I. A., & Henrys, S. A. (2004). Evidence for gas hydrate 'sweet spots' on the Hikurangi margin and offshore Fiordland. New Zealand Petroleum Conference Proceedings. [CD-ROM] Wellington, New Zealand: Crown Minerals, Ministry of Economic Development. [Full Paper]
Conference Contribution - Published proceedings: Full paper
Pecher, I. A., Maslen, G., Stagpoole, V., & Gorman, A. R. (2004). Wide-angle seismic surveys - the solution for imaging beneath the Taranaki Fault? New Zealand Petroleum Conference Proceedings. [CD-ROM] Wellington, New Zealand: Crown Minerals, Ministry of Economic Development. [Full Paper]
Conference Contribution - Published proceedings: Full paper
Hornbach, M. J., Holbrook, W. S., Gorman, A. R., Hackwith, K. L., Lizarralde, D., & Pecher, I. (2003). Direct seismic detection of methane hydrate on the Blake Ridge. Geophysics, 68(1), 92-100.
Journal - Research Article
Clowes, R. M., Burianyk, M. J., Gorman, A. R., & Kanasewich, E. R. (2002). Crustal velocity structure from SAREX, the Southern Alberta Refraction Experiment. Canadian Journal of Earth Sciences, 39(3), 351-373.
Journal - Research Article
Gorman, A. R. (2002). Ray-theoretical seismic traveltime inversion: Modifications for a two dimensional radially parametrized earth. Geophysical Journal International, 151, 511-516.
Journal - Research Article
Gorman, A. R., Clowes, R. M., & et al (2002). Deep probe: Imaging the roots of western North America. Canadian Journal of Earth Sciences, 39(3), 375-398.
Journal - Research Article
Gorman, A. R., Holbrook, W. S., Hornbach, M. J., Hackwith, K. L., Lizarralde, D., & Pecher, I. A. (2002). Migration of methane gas through the hydrate stability zone in a low-flux hydrate province. Geology, 30(4), 327-330.
Journal - Research Article
Holbrook, W. S., Gorman, A. R., Hornbach, M., Hackwith, K. L., Nealon, J., Lizarralde, D., & Pecher, I. A. (2002). Seismic detection of marine methane hydrate. Leading Edge, 21(7), 686-689.
Journal - Research Article
Holbrook, W. S., Lizarralde, D., Pecher, I. A., Gorman, A. R., Hackwith, K. L., Hornbach, M. J., & Saffer, D. M. (2002). Escape of methane gas through sediment waves in a large methane hydrate province. Geology, 30(5), 467-470.
Journal - Research Article
Gorman, A. R., & Clowes, R. M. (1999). wave-field tau-p analysis for 2-D velocity models: Application to western North American lithosphere. Geophysical Research Letters, 26(16), 2323-2326.
Journal - Research Article
Gorman, A. R., & et al (1998). Probing the depths of western North America: Contrasting archean and proterozoic lithosphere with controlled source seismology. GSA Today, 8(7), 1-5.
Journal - Research Article