From Australian Oceans Data Network
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Quantifying the isotopic composition of oxygen and carbon through time in the core BAR 9403, located off the coast of Sumatra

Created 23/06/2025

Updated 23/06/2025

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This short core obtained off Sumatra (BAR9403, 5.82 S, 104.0316 E) records the palaeoceanography from the Last Glacial Maximum (LGM) to the present day. The lightest 18O value (-2.99ppt) is recorded during the Holocene (~5cm depth) while the LGM (~125cm depth) is positioned at the heaviest 18O value of -0.59ppt. Once the estimated ice volume effect has been accounted for, this still leaves a substantial difference in 18O which must be accounted for through significant changes in sea-surface temperature (SST) or salinity. The 13C record ranges from a minimum at approximately 8500 yrs BP of 0.16ppt to a maximum value of 1.31ppt during MIS 3.

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Additional Info

Field Value
Title Quantifying the isotopic composition of oxygen and carbon through time in the core BAR 9403, located off the coast of Sumatra
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/2f703e32-8a02-47a9-b3ba-410a00a6c18b
Contact Point
Australian Ocean Data Network
michelle.spooner8@gmail.com
Reference Period 01/01/1994 - 01/01/1994
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        104.0,
        -6.0
      ],
      [
        104.5,
        -6.0
      ],
      [
        104.5,
        -5.5
      ],
      [
        104.0,
        -5.5
      ],
      [
        104.0,
        -6.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Quantifying the isotopic composition of oxygen and carbon through time in the core BAR 9403, located off the coast of Sumatra". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/quantifying-the-isotopic-composition-of-oxygen-and-carbon-through-time-in-the-core-bar-9403-loc1