1887
ASEG2013 - 23rd Geophysical Conference
  • ISSN: 2202-0586
  • E-ISSN:

Abstract

In 2011, Geoscience Australia collected 484 km of deep crustal seismic reflection data. The survey traverses the northeast Yilgarn Craton, western Officer Basin and the western Musgrave Province. The aim of the survey was to obtain structural information about a relatively unexplored region of the Officer Basin, as well as provide insights into the crustal-scale architecture of the surrounding region. The broad scale architecture is of particular interest because it delineates the boundary between two major continental blocks; the Musgrave Province and the Yilgarn Craton.

This study presents a geological framework for the region using a three-dimensional model as a medium for visualisation and is a virtual representation of the geology of the region. It derives from interpretations made by integrating spatial geoscience datasets collected at the Earth’s surface. The most significant constraint for the subsurface geology comes from the deep crustal seismic reflection survey, 11GA-YO1.

The resulting model is a georeferenced, closed volume that represents a geological framework to be tested and understood within the context of geodynamic models for the region.

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/content/journals/10.1071/ASEG2013ab207
2013-12-01
2026-01-22
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References

  1. Fraser, G., McAvaney, S., Neumann, N., Szpunar, M. and Reid, A., 2010, Discovery of early Mesoarchean crust in the eastern Gawler Craton, South Australia: Precambrian Research, 179, 1-4.
  2. Duan, J., et al., 2013, MT modelling over the Yilgarn Craton - Officer Basin - Musgrave Province: Geoscience Australia, Canberra (in prep).
  3. Korsch, R.J., et al., 2013, Geodynamic implications of the YOM deep seismic reflection survey: a traverse from the northeastern Yilgarn Craton to the Western Musgrave Province: Geoscience Australia, Canberra, Record (in prep).
  4. Emerson D.W., 1990, Notes on mass properties of rocks? density, porosity, permeability: Exploration Geophysics 21, 209-216.
  5. Clark D.A. and Emerson D.W., 1991, Notes on rock magnetization characteristics in applied geophysical studies: Exploration Geophysics 22, 547-555.
  6. Rudnick, R. L. and Fountain, D. M., 1995, Nature and composition of the continental crust: a lower crustal perspective: Reviews of Geophysics, 33, 267-309.
  7. Milligan, P.R., Franklin, R., Minty, B.R.S., Richardson L.M., and Percival, P.J., 2010, Magnetic Anomaly Map of Australia (Fifth Edition): Geoscience Australia, Canberra.
  8. Bacchin, M., Milligan, P.R., Wynne, P., and Tracey, R., 2008, Gravity Anomaly Map of the Australian Region (Fourth Edition): Geoscience Australia, Canberra.
/content/journals/10.1071/ASEG2013ab207
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  • Article Type: Research Article
Keyword(s): 3D modelling; crustal architecture; Musgrave; Officer Basin; seismic reflection; Yilgarn
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