Andy Tulloch


Full Name: Andy Tulloch

Position: Geologist

Contact details

Email me here
Phone: +64-3-479 9685


1974: BSc (Hons), Geology; 1979: PhD, Geology

Areas of expertise

Geology: Crustal tectonics
Geology: Geochemistry
Geology: Geochronology
Geology: Geothermal
Geology: Mineralogy
Geology: Petrology

Professional activities

Geological Society of New Zealand: Member
University of Nevada, Las Vegas: Associate Graduate Faculty
American Geophysical Union: Member
Geochemical Society: Member

Major publications

Tulloch, A.J.; Mortimer, N.; Ireland, T.; Waight, T.; Maas, R.; Palin, M.; Sahoo, T.R.; Seebeck, H.; Sagar, M.W.; Barrier, A.; Turnbull, R.E. 2019 Reconnaissance basement geology and tectonics of south Zealandia. Tectonics, 38(2): 516-551; doi: 10.1029/2018TC005116

Decker, M.; Schwartz, J.J.; Stowell, H.H.; Klepeis, K.A.; Tulloch, A.J.; Kitajima, K.; Valley, J.W.; Kylander-Clark, A.R.C. 2017 Slab-triggered arc flare-up in the Cretaceous Median Batholith and the growth of lower arc crust, Fiordland, New Zealand. Journal of Petrology, 58(6): 1145-1171; doi: 10.1093/petrology/egx049

Mortimer, N.; Campbell, H.J.; Tulloch, A.J.; King, P.R.; Stagpoole, V.M.; Wood, R.A.; Rattenbury, M.S.; Sutherland, R.; Adams, C.J.; Collot, J.; Seton, M. 2017 Zealandia: Earth's hidden continent. GSA today, 27(3): 27-35; doi: 10.1130/GSATG321A.1

Schwartz, J.J.; Stowell, H.H.; Klepeis, K.A.; Tulloch, A.J.; Kylander-Clark, A.R.C.; Hacker, B.R.; Coble, M.A. 2016 Thermochronology of extensional orogenic collapse in the deep crust of Zealandia. Geosphere, 12(3): 647-677; doi: 10.1130/GES01232.1

Turnbull, R.E.; Tulloch, A.J.; Ramezani, J.; Jongens, R. 2016 Extension-facilitated pulsed S-I-A-type “flare-up” magmatism at 370 Ma along the southeast Gondwana margin in New Zealand : insights from U-Pb geochronology and geochemistry. Geological Society of America Bulletin, 128(9/10): 1500-1520; doi: 10.1130/B31426.1

Ring, U.; Bernet, M.; Tulloch, A.J. 2015 Kinematic, finite strain and vorticity analysis of the Sisters Shear Zone, Stewart Island, New Zealand. Journal of Structural Geology, 73: 114-129; doi: 10.1016/j.jsg.2015.02.004

Stowell, H.; Odom Parker, K.; Gatewood, M.; Tulloch, A.J.; Koenig, A. 2014 Temporal links between pluton emplacement, garnet granulite metamorphism, partial melting and extensional collapse in the lower crust of a Cretaceous magmatic arc, Fiordland, New Zealand. Journal of metamorphic geology, 32(2): 151-175; doi: 10.1111/jmg.12064

Turnbull, R.E.; Deering, C.D.; Tulloch, A.J.; Weaver, S.D. 2012 Second boiling effects on the Al-content of hornblende rims from an exhumed Cretaceous arc pluton, Stewart Island, New Zealand. American Mineralogist, 97(7): 1129-1144; doi: 10.2138/​am.2012.3967

Scott, J.M.; Cooper, A.F.; Tulloch, A.J.; Spell, T.L. 2011 Crustal thickening of the Early Cretaceous paleo-Pacific Gondwana margin. Gondwana Research, 20(2/3): 380-394; doi: 10.1016/

Scott, J.M.; Palin, J.M.; Cooper, A.F.; Sagar, M.W.; Allibone, A.H.; Tulloch, A.J. 2011 From richer to poorer : zircon inheritance in Pomona Island Granite, New Zealand. Contributions to Mineralogy and Petrology, 161(5): 667-681; doi: 10.1007/s00410-010-0556-5

Tulloch, A.J.; Ireland, T.R.; Kimbrough, D.L.; Griffin, W.L.; Ramezani, J. 2011 Autochthonous inheritance of zircon through Cretaceous partial melting of carboniferous plutons : the Arthur River Complex, Fiordland, New Zealand. Contributions to Mineralogy and Petrology, 161(3): 401-421; doi: 10.1007/s00410-010-0539-6

Stowell, H.; Tulloch, A.J.; Zuluaga, C.; Koenig, A. 2010 Timing and duration of garnet granulite metamorphism in magmatic arc crust, Fiordland, New Zealand. Chemical Geology, 273(1/2): 91-110; doi: 10.1016/j.chemgeo.2010.02.015

Turnbull, R.E.; Weaver, S.D.; Tulloch, A.J.; Cole, J.W.; Handler, M.; Ireland, T.R. 2010 Field and geochemical constraints on mafic-felsic interactions, and processes in high-level arc magma chambers : an example from the Halfmoon Pluton, New Zealand. Journal of Petrology, 51(7): 1477-1505; doi: 10.1093/petrology/egq026

Allibone, A.H.; Jongens, R.; Scott, J.M.; Tulloch, A.J.; Turnbull, I.M.; Cooper, A.F.; Powell, N.G.; Ladley, E.B.; King, R.P.; Rattenbury, M.S. 2009 Plutonic rocks of the Median Batholith in eastern and central Fiordland, New Zealand : field relations, geochemistry, correlation, and nomenclature. New Zealand Journal of Geology and Geophysics, 52(2): 101-148; doi: 10.1080/00288300909509882

Allibone, A.H.; Jongens, R.; Turnbull, I.M.; Milan, L.A.; Daczko, N.R.; De Paoli, M.C.; Tulloch, A.J. 2009 Plutonic rocks of western Fiordland, New Zealand : field relations, geochemistry, correlation, and nomenclature. New Zealand Journal of Geology and Geophysics, 52(4): 379-415; doi: 10.1080/00288306.2009.9518465

Kula, J.; Tulloch, A.J.; Spell, T.L.; Wells, M.L.; Zanetti, K.A. 2009 Thermal evolution of the Sisters shear zone, southern New Zealand : formation of the Great South Basin and onset of Pacific-Antarctic spreading. Tectonics, 28: TC5015; doi: 10.1029/2008TC002368

Scott, J.M.; Cooper, A.F.; Palin, J.M.; Tulloch, A.J.; Kula, J.; Jongens, R.; Spell, T.L.; Pearson, N.J. 2009 Tracking the influence of a continental margin on growth of a magmatic arc (Fiordland, New Zealand) using thermobarometry, thermochronology, and zircon U-Pb and Hf isotopes. Tectonics, 28(6): TC6007; doi: 10.1029/2009TC002489

Tulloch, A.J.; Ramezani, J.; Kimbrough, D.L.; Faure, K.; Allibone, A.H. 2009 U-Pb geochronology of mid-Paleozoic plutonism in western New Zealand : implications for S-type granite generation and growth of the east Gondwana margin. Geological Society of America Bulletin, 121(9/10): 1236-1261

Tulloch, A.J.; Ramezani, J.; Mortimer, N.; Mortensen, J.; van den Bogaard, P.; Maas, R. 2009 Cretaceous felsic volcanism in New Zealand and Lord Howe Rise (Zealandia) as a precursor to final Gondwana break-up. p. 89-118 IN: Ring, U.; Wernicke, B. (eds) Extending a continent : architecture, rheology and heat budget. London: Geological Society. Geological Society special publication 321.

Allibone, A.H.; Tulloch, A.J. 2008 Early Cretaceous dextral transpressional deformation within the Median Batholith, Stewart Island, New Zealand. New Zealand Journal of Geology and Geophysics, 51(2): 115-134; doi: 10.1080/00288300809509854

Allibone, A.H.; Turnbull, I.M.; Tulloch, A.J.; Cooper, A.F. 2007 Plutonic rocks of the Median Batholith in southwest Fiordland, New Zealand : field relations, geochemistry, and correlation. New Zealand Journal of Geology and Geophysics, 50(4): 283-314; doi: 10.1080/00288300709509838

Kula, J.L.; Tulloch, A.J.; Spell, T.L.; Wells, M.L. 2007 Two-stage rifting of Zealandia-Australia-Antarctica : evidence from 40Ar/39Ar thermochronometry of the Sisters shear zone, Stewart Island, New Zealand. Geology, 35(5): 411-414; doi: 10.1130/G23432A.1

Tulloch, A.J.; Beggs, M.; Kula, J.; Spell, T.; Mortimer, N. 2006 Cordillera Zealandia, the Sisters Shear Zone and their influence on the early development of the Great South Basin. 11 p. IN: 2006 New Zealand Petroleum Conference proceedings. Wellington: Ministry of Economic Development

Flowers, R.M.; Bowring, S.A.; Tulloch, A.J.; Klepeis, K.A. 2005 Tempo of burial and exhumation within the deep roots of a magmatic arc, Fiordland, New Zealand. Geology, 33(1): 17-20

Allibone, A.H.; Tulloch, A.J. 2004 Geology of the plutonic basement rocks of Stewart Island, New Zealand. New Zealand Journal of Geology and Geophysics, 47(2): 233-256; doi: 10.1080/00288306.2004.9515051

Tulloch, A.J.; Kimbrough, D.L. 2003 Paired plutonic belts in convergent margins and the development of high Sr/Y magmatism : Peninsular Ranges batholith of Baja-California and Median batholith of New Zealand. p. 275-295 IN: Johnson, S.E.; Paterson, S.R.; Fletcher, J.M.; Girty, G.H.; Kimbrough, D.L.; Martin-Barajas, A. (eds) Tectonic evolution of northwestern Mexico and the southwestern USA. Boulder, Colo., USA: Geological Society of America. Special papers / Geological Society of America 374.

Spell, T.L.; McDougall, I.; Tulloch, A.J. 2000 Thermochronologic constraints on the breakup of the Pacific Gondwana margin: the Paparoa metamorphic core complex, South Island, New Zealand. Tectonics, 19(3): 433-451

Mortimer, N.; Tulloch, A.J.; Spark, R.N.; Walker, N.W.; Ladley, E.; Allibone, A.H.; Kimbrough, D.L. 1999 Overview of the Median Batholith, New Zealand : a new interpretation of the geology of the Median Tectonic Zone and adjacent rocks. p. 257-268 IN: Storey, B.C. (ed.); Rubridge, B.S. (ed.); Cole, D.I. (ed.); de Wit, M.J. (ed.) Gondwana 10 : event stratigraphy of Gondwana : proceedings volume 1. Oxford, England: Elsevier. Journal of African earth sciences 29(1).

Kimbrough, D.L.; Tulloch, A.J.; Coombs, D.S.; Landis, C.A.; Johnston, M.R.; Mattinson, J.M. 1994 Uranium-lead zircon ages from the Median Tectonic Zone, New Zealand. New Zealand Journal of Geology and Geophysics, 37(4): 393-419; doi: 10.1080/00288306.1994.9514630

Tulloch, A.J.; Campbell, J.K. 1993 Clinoenstatite-bearing buchites possibly from combustion of hydrocarbon gases in a major thrust zone : Glenroy Valley, New Zealand. Journal of geology, 101: 404-412

Cooper, R.A.; Tulloch, A.J. 1992 Early Palaeozoic terranes in New Zealand and their relationship to the Lachlan Fold Belt. Tectonophysics, 214(1/4): 129-144; doi: 10.1016/0040-1951(92)90193-A

Tulloch, A.J.; Nathan, S. 1990 Spinel harzburgite xenoliths in alkali basalt and camptonite from North Westland and southeast Nelson, New Zealand. New Zealand Journal of Geology and Geophysics, 33(4): 529-534; doi: 10.1080/00288306.1990.10421370

Kimbrough, D.L.; Tulloch, A.J. 1989 Early Cretaceous age of orthogneiss from the Charleston Metamorphic Group, New Zealand. Earth and Planetary Science Letters, 95(1-2): 130-140; doi: 10.1016/0012-821X(89)90172-6

Tulloch, A.J.; Kimbrough, D.L. 1989 The Paparoa Metamorphic Core Complex, Westland-Nelson, New Zealand : Cretaceous extension associated with fragmentation of the Pacific margin of Gondwana. Tectonics, 8(6): 1217-1234; doi: 10.1029/TC008i006p01217

Tulloch, A.J. 1983 Granitoid rocks of New Zealand : a brief review. p. 5-20 IN: Roddick, J.A. (ed.) Circum-Pacific plutonic terranes. Boulder, Co.: Geological Society of America. Memoir / Geological Society of America 159.

Tulloch, A.J. 1979 Secondary Ca-Al silicates as low-grade alteration products of granitoid biotite. Contributions to Mineralogy and Petrology, 69: 105-117

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