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Buried reef structures in the Lennard Shelf, Canning Basin, Western Australia

Created 02/03/2026

Updated 02/03/2026

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Buried Upper Devonian reef has been found in Meda No. 1 borehole in the Lennard Shelf, Canning Basin. Frequency analysis made on seismic-record sections across the structure indicates an increase in the frequency of seismic reflection above the structure. The frequency increase is interpreted as indicating thinning of sedimentary layers caused by differential compaction commonly found above a reef. Analysis of a further sixteen selected seismic-record sections containing features suspected to be reef structures shows the presence of similar frequency anomalies on four of the seismic sections, and is suggestive of a further four buried reef structures in the Lennard Shelf.

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Additional Info

Field Value
Title Buried reef structures in the Lennard Shelf, Canning Basin, Western Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/9fcf2dd9-9d57-4669-b750-bb1c1a0ac8e1
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        123.5,
        -18.0
      ],
      [
        124.5,
        -18.0
      ],
      [
        124.5,
        -17.0
      ],
      [
        123.5,
        -17.0
      ],
      [
        123.5,
        -18.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Buried reef structures in the Lennard Shelf, Canning Basin, Western Australia". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/buried-reef-structures-in-the-lennard-shelf-canning-basin-western-australia6