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School of Environment

Geophysical Measurement

Bouguer gravity anomaly map over the Hauraki Lowlands and Kaimai Ranges showing low (blue) gravity values

 

Geophysical surveying and interpretation capability in gravity, electrical, seismic and magnetic methods.

  1. » Terrestrial geophysical survey equipment
  2. » Data Analysis
  3. » Rock Physics Laboratory
  4. » Key contacts

Terrestrial geophysical survey equipment

  • Lacoste & Romberg Model D gravity meter
  • Lacoste & Romberg Model G gravity meter
  • Sensors and Software pulseEKKO Pro Ground Penetrating Radar - with 50, 100, and 200MHz antennas bi-static configuration.
  • ABEM Terrameter SAS 4000 resisitivity system
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Data Analysis

  • GNS Globe Claritas (seismic processing) - LINK to GNS website
  • Intrepid (potential field and radiometrics data processing)  - LINK to Intrepid website
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Aeromagnetic map of the Auckland region shown as a shaded relief image. The Junction Magnetic Anomaly (red) which extends along the length of New Zealand is shown to split into multiple strands in the Auckland area. From the Master of Science study ‘Structural and tectonic implications of the Junction Magnetic Anomaly in the Auckland region’ by Jennifer Eccles (2003).
interpreted offshore seismic reflection Interpreted offshore seismic reflection section from the Northland Basin showing large faults disrupting the basement. From Master of Science study ‘An integrated geophysical investigation of the southern Northland Basin, New Zealand’ by Brodie Klue (2008).
Seismic data processing

 

 

Rock Physics Laboratory

Inside the Rock Physics Laboratory

Equipment

  • High pressure P- and S-wave wave and electrical resistivity system with high pressure needle pump (Teledyne Isco). Maximum confining pressure 60 MPa, maximum pore fluid pressure 60 MPa.
  • Two high pressure stainless steel reactor vessels. Maximum confining pressure 60 MPa and 30 MPa.
  • High pressure P-wave laser-ultrasonic system (with Teledyne Isco pump). Maximum confining pressure 25 MPa. The system is in shared with the Physical Acoustics Lab (PAL).

Lead Academic

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Key contacts

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