Zealandia

Nick Mortimer

doi:10.1071/ASEG2006ab119

ISSN: 2202-0586
E-ISSN:

oa Zealandia
Authors Nick Mortimer^a
View Affiliations Hide Affiliations

^a GNS Science, Private Bag 1930, Dunedin, , New Zealand, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2006, Issue ASEG2006 - 18th Geophysical Conference, Dec 2006, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2006ab119
- Published online: 01 Dec 2006

Abstract

Zealandia is a mainly submerged continental block, one third the size of Australia. Before 85-55 Ma Tasman Sea spreading, orogenic trends in Queensland, New South Wales, Victoria and Tasmania continued along what is now the Lord Howe Rise towards their counterparts in New Zealand.

Geologically credible comparisons between selected trans-Tasman and SW Pacific geological provinces and units, especially those that contain significant mineralisation in Australia, can help provide a useful exploration framework for New Zealand.

Additional geological events that have affected Zealandia’s regional mineral prospectivity include more widespread 125-85 Ma magmatism and extensional exhumation, superposition of Neogene volcanic arcs in the North Island, and localised Neogene exhumation in the South Island.

Article metrics loading...

/content/journals/10.1071/ASEG2006ab119

2006-12-01

2026-01-25

From This Site

/content/journals/10.1071/ASEG2006ab119

dcterms_title,dcterms_subject,pub_keyword

-contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution

10

5

Full text loading...

References

Bryan, S.E., Constantine, A.E., Stephens, C.J., Ewart, A., Schön, R.W. and Parianos, J., 1997, Early Cretaceous volcano-sedimentary successions along the eastern Australian continental margin: implications for the break-up of eastern Gondwana: Earth and Planetary Science Letters, 153, 85-102.
Cawood, P.A., 1984, The development of the SW Pacific margin of Gondwana: correlations between the Rangitata and New England orogens: Tectonics, 3, 539-553.
Gaina, C., Müller, R.D., Royer, J.-Y., Stock, J., Hardebeck, J. and Symonds, P., 1998, The tectonic history of the Tasman Sea: a puzzle with 13 pieces: Journal of Geophysical Research, 103, 12413-12433.
Griffiths, J.R., 1971, Reconstruction of the south-west Pacific margin of Gondwanaland: Nature, 234, 203-207.
Grindley, G.W. and Davey, F.J., 1982, The reconstruction of New Zealand, Australia, and Antarctica: In Craddock, C. (ed.) (University of Wisconsin. Madison) Antarctic geoscience p. 423-443.
Mortimer, N., 2004, New Zealand’s geological foundations: Gondwana Research, 7, 261-272.
Sutherland, R., 1999, Basement geology and tectonic development of the greater New Zealand region: an interpretation from regional magnetic data: Tectonophysics, 308, 341-362.
Sandwell, D.T. and Smith, W.H.F., 1997, Marine gravity anomaly from ERS-1, Geosat and satellite altimetry: Journal of Geophysical Research, 102, 10039-10045.
Tulloch, A.J., Ramezani, J., Allibone, A. and Mortimer, N., 2005, Early Cretaceous large volume silicic magmatism in New Zealand and Queensland: similarities between the Median Batholith and the Whitsunday Volcanic Province: Structure Tectonics Ore Mineralisation Processes 2005 Abstracts. Economic Geology Research Unit, James Cook University Contribution, 64, 136.

/content/journals/10.1071/ASEG2006ab119

Article Type: Research Article

Keyword(s): Australia; mineral prospectivity; New Zealand; regional geology; Zealandia

Most Cited This Month Most Cited RSS feed

- Inversion of data from electrical imaging surveys in water-covered areas
  
  Authors M. H. Loke and J. W. Lane
- Inversion of Magnetic Data from Remanent and Induced Sources
  
  Authors Robert G. Elllis, Barrry de Wet and Ian N. Macleod
- A comparison of smooth and blocky inversion methods in 2-D electrical imaging surveys
  
  Authors M. H. Loke, Ian Acworth and Torleif Dahlin
- Designing matched bandpass and azimuthal filters for the separation of potential-field anomalies by source region and source type
  
  Authors Jeffrey D. Phillips
- Bad Colour Maps Hide Big Features and Create False Anomalies
  
  Authors Peter Kovesi
- Practical 3D EM inversion – the P223F software suite
  
  Authors Art Raiche, Fred Sugeng and Glenn Wilson
- Estimating Noise Levels in AEM Data
  
  Authors Andy Green and Richard Lane
- Target delineation using Full Tensor Gravity Gradiometry data
  
  Authors Colm A. Murphy and James Brewster
- Transdimensional Monte Carlo Inversion of AEM Data
  
  Authors Ross C Brodie and Malcolm Sambridge
- The geotech VTEM time domain helicopter em system
  
  Authors Ken Witherly, Richard Irvine and Edward Morrison
More Less

oa Zealandia

Abstract

Most Read This Month

Most Cited This Month Most Cited RSS feed