Quantifying the isotopic composition of oxygen and carbon through time in the core MD002361, located on the shelf edge offshore Western Australia

Created 25/06/2017

Updated 11/08/2023

The calcareous tests of Globigerinoides ruber are analysed to quantify the isotopic composition of oxygen and carbon through time at core site MD002361 (113o28.63'E, 22o04.92'S). The heaviest 18O value was recorded during MIS 12 (at a depth of 1265cm) with a value of -0.04ppt, while the lightest 18O value of -2.49ppt was registered at 1200cm depth, during MIS 11. Once the estimated ice volume effect has been accounted for, this still leaves a substantial difference 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 126k yrs BP of -0.05ppt during MIS 5, to a maximum value of 2.11ppt during MIS 10.

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Title Quantifying the isotopic composition of oxygen and carbon through time in the core MD002361, located on the shelf edge offshore Western Australia
Language English
Licence Creative Commons Attribution 2.5 Australia
Landing Page https://data.gov.au/data/dataset/6fac43f6-2e2c-427d-902c-f54185e05b85
Contact Point
Australian National University
michelle.spooner8@gmail.com
Reference Period 25/06/2017
Geospatial Coverage
Map data © OpenStreetMap contributors
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      [
        113.0,
        -22.0
      ],
      [
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  "type": "Polygon"
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Data Portal Data.gov.au