From Australian Oceans Data Network
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Datasets relating to samples collected from the Lagoon physiographic zone on Wistari Reef

Created 24/06/2025

Updated 24/06/2025

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Wistari Reef is a lagoonal platform reef, situated on the Tropic of Capricorn, within the Capricorn and Bunker region of the southern Great Barrier Reef. Surface samples were taken from the lagoon area to determine the mean grainsize and the sorting coefficient and also the proportion of aragonite to calcite within the samples. Within the lagoon area the average mean grainsize is ~1.25phi, with an average sorting coefficient of 1.04phi. Individual samples exhibited much variation in grainsize and sorting. The 'lagoon' physiographic zone needs to be sub-divided into 'deep-lagoon' samples (eg S16) and 'patch-reef dominated' samples (eg S11). The sediments of the 'deep-lagoon' are poorly sorted medium to fine sands, with little contribution from in situ patch reef growth. The 'patch-reef dominated' sediment is a poorly sorted medium sand, and contains a high proportion of coarser grains derived from patch reefs within the lagoon. There was a higher proportion of Aragonite in the samples compared to calcite.

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Field Value
Title Datasets relating to samples collected from the Lagoon physiographic zone on Wistari Reef
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/fe129936-ad4d-41b3-8f74-02ebfda4ab5d
Contact Point
Australian Ocean Data Network
David.ryan75@gmail.com
Reference Period 01/01/1998 - 01/01/1998
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        151.5,
        -24.5
      ],
      [
        153.0,
        -24.5
      ],
      [
        153.0,
        -23.0
      ],
      [
        151.5,
        -23.0
      ],
      [
        151.5,
        -24.5
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Datasets relating to samples collected from the Lagoon physiographic zone on Wistari Reef". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/datasets-relating-to-samples-collected-from-the-lagoon-physiographic-zone-on-wistari-reef1