From Australian Oceans Data Network
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The percentage of calcium carbonate in samples taken from various depths in core GC09, located in the Capricorn Channel.

Created 23/06/2025

Updated 23/06/2025

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A gravity core (GC09) was collected from a depth of 166m within the Capricorn Channel, southern Great Barrier Reef (GBR). The percentage of calcium carbonate in samples collected from different depths was analysed, along with other parameters, to determine changes in carbonate mineralogy and terrestrial influx. The lowest percentage of calcium carbonate was recorded at ~60cm depth corresponding to the Last Glacial Maximum (LGM). The increase in the percentage of silt and mud during the LGM relates to a reduction in bioclastic carbonate production.

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Additional Info

Field Value
Title The percentage of calcium carbonate in samples taken from various depths in core GC09, located in the Capricorn Channel.
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/3d59e952-0678-4966-b30c-56302d72f0b4
Contact Point
Australian Ocean Data Network
h.bostock@niwa.co.nz
Reference Period 01/01/1997 - 01/01/1997
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 "The percentage of calcium carbonate in samples taken from various depths in core GC09, located in the Capricorn Channel.". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/the-percentage-of-calcium-carbonate-in-samples-taken-from-various-depths-in-core-gc09-located-i1