From Australian Oceans Data Network
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Determining the grainsize of sediment with increasing depth in core GC12, located in the Capricorn Channel

Created 23/06/2025

Updated 23/06/2025

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A gravity core (GC12) was collected from a depth of 990.5 mbsl within the Capricorn Channel, southern Great Barrier Reef (GBR). Samples were separated into different size fractions to determine the % of each grainsize at each sample depth. Although not overly accurate, the information is correlated with analyses of other parameters to impart clues to the environmental changes within the core. The smallest size fraction (<100µm) dominates at all depths, with an average of 95% in this size bracket at the base of the core. A peak in the larger grainsize fraction at 490cm is the result of a pteropod layer within the sediments. These pteropod accumulations are regular features within the cores. The exact reason for their occurence is unknown.

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Additional Info

Field Value
Title Determining the grainsize of sediment with increasing depth in core GC12, located in the Capricorn Channel
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/0140e181-72c6-41e6-8803-1fafc368f35d
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 "Determining the grainsize of sediment with increasing depth in core GC12, 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/determining-the-grainsize-of-sediment-with-increasing-depth-in-core-gc12-located-in-the-caprico1