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L136 Sagasco/Agso Joint Research seismic survey in Gippsland, VIC, 1992 Stacked seismic data and images for lines GSG92A-1, GSG92A-2, and GSG92A-3

Created 17/10/2025

Updated 17/10/2025

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This is a Joint Research Project of a seismic test survey using dynamite as a seismic source in the Gippsland Basin between South Australian Gas Company (SAGASCO) and Geoscience Australia. This survey wad conducted by using the GA Sercel SN368 seismic 120 channel data acquisition system, two drilling rigs and seismic crew. The primary objective of the seismic test survey was to test whether by using dynamite as the seismic energy source, seismic reflection events could be recorded from geological horizons below the base of the Latrobe Valley Group. Processing of the seismic data revealed that using explosives as a seismic source also had difficulty in resolving seismic reflection events below the Labtrobe Valley Group sediments. In places multiple reflection events due to the coal beds within the Latrobe Valley Group are intermixed with primary reflections making interpretation of deeper reflection events difficult or impossible. However long offsets recordings highlighted a significant first break refraction event at far offset distances, which from preliminary interpretations is related to the base of the Latrobe Valley Group or top of Strzelecki Group. To resolve the thickness of Strzelecki Group sediments, the recording of first break refraction events using long offset walkaway spreads (offsets in the 6 to 8 km range) maybe a technique to test in future seismic surveys.

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Field Value
Title L136 Sagasco/Agso Joint Research seismic survey in Gippsland, VIC, 1992 Stacked seismic data and images for lines GSG92A-1, GSG92A-2, and GSG92A-3
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/e0482666-0e31-4558-9616-b03d5fd43014
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 11/06/1992 - 17/06/1992
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        146.5,
        -38.5
      ],
      [
        146.8,
        -38.5
      ],
      [
        146.8,
        -38.0
      ],
      [
        146.5,
        -38.0
      ],
      [
        146.5,
        -38.5
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "L136 Sagasco/Agso Joint Research seismic survey in Gippsland, VIC, 1992 Stacked seismic data and images for lines GSG92A-1, GSG92A-2, and GSG92A-3". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/l136-sagasco-agso-joint-research-seismic-survey-in-gippsland-vic-1992-stacked-seismic-data-and-