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L072 BMR 12 (Cockroach) well seismic velocity survey, NT, 1964

Created 17/10/2025

Updated 17/10/2025

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In November 1964, the Bureau of Mineral Resources Seismic Party No. 1 carried out a velocity survey in CBMR 12 (Cockroach) Well, Northern Territory, which had been drilled to 4000 feet and logged using sonic and other logging methods. The time/depth values obtained in the velocity survey were in good agreement with those obtained by integration of the sonic log. A curve showing the variation with time-of'the coefficient of reflection calculated from the sonic log showed an outstanding feature, which appeared to correlate with the best reflection recorded on an experimental seismic traverse nearby. According to the geological interpretation of the well log, this reflection arises from velocity changes near the boundary of the ArrinthrungaTormation and the Marqua Beds at a depth of 2,721 feet.

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Additional Info

Field Value
Title L072 BMR 12 (Cockroach) well seismic velocity survey, NT, 1964
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/82068252-66a0-4438-8944-31ca7620325c
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 13/09/1964 - 19/11/1964
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        137.0,
        -22.75
      ],
      [
        137.5,
        -22.75
      ],
      [
        137.5,
        -22.25
      ],
      [
        137.0,
        -22.25
      ],
      [
        137.0,
        -22.75
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "L072 BMR 12 (Cockroach) well seismic velocity survey, NT, 1964". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/l072-bmr-12-cockroach-well-seismic-velocity-survey-nt-1964