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L145 Kalgoorlie (Yilgarn) seismic survey, WA, 1997 Stacked and migrated seismic data and images for lines 96AGS-K1, 96AGS-K2, 96AGS-K3, and 96AGS-K4

Created 16/10/2025

Updated 16/10/2025

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Geoscience Australia through its partnership in the Australian Geodynamics Cooperative Research Centre (AGCRC) and Kalgoorlie Consolidated Gold Mines (KCGM) completed a joint research project to image the crustal structure of the Kalgoorlie region to develop a knowledge of the shallow and deep structures, tectonics, and fluid migration pathways. The Australian National Seismic Imaging Resource (ANSIR) was contracted to acquire the seismic data. The project's objectives were to obtain a better understanding of 1. sub-surface geology at a regional and mine scale 2. regional crustal thickness and major features 3. stratigraphic and structural architecture of the mineral system 4. timing and locations of fluid migration pathways The seismic survey obtained 25 km of 10 fold CMP (common midpoint) regional reflection seismic data along two traverses and 8 km of 10 fold CMP high resolution reflection seismic data along another two traverses. The data are of good quality and similar to both the 1991 and 1999 Eastern Goldfields reflection seismic data to the north and south of the survey area. The major outcome of imaging the four localities included mapping the Golden Mile and Boulder-Lefroy Faults, and the Boorara Shear at depth. This new information indicates the Golden Mile Mine was fed by a suite of relatively minor faults dangling off the major crustal-scale Boorara Shear. The dangling element relates to percolation theory. The detachment surface was imaged on all seismic traverses. Thrust duplexes were interpreted above the detachment surface.

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Title L145 Kalgoorlie (Yilgarn) seismic survey, WA, 1997 Stacked and migrated seismic data and images for lines 96AGS-K1, 96AGS-K2, 96AGS-K3, and 96AGS-K4
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/11fc832f-ec43-440b-a3d6-e3fc38c0ff92
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 08/09/1997 - 24/09/1997
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        121.25,
        -31.0
      ],
      [
        121.75,
        -31.0
      ],
      [
        121.75,
        -30.5
      ],
      [
        121.25,
        -30.5
      ],
      [
        121.25,
        -31.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "L145 Kalgoorlie (Yilgarn) seismic survey, WA, 1997 Stacked and migrated seismic data and images for lines 96AGS-K1, 96AGS-K2, 96AGS-K3, and 96AGS-K4". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/l145-kalgoorlie-yilgarn-seismic-survey-wa-1997-stacked-and-migrated-seismic-data-and-images-for