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Age vs Depth profile of core GC11, collected from the Capricorn Channel off the Eastern Australian Coast

A gravity core (GC11) was collected from a depth of 502 mbsl within the Capricorn Channel, southern Great Barrier Reef (GBR). Isotopic values for 18O and 13C were obtained from Gs. ruber and correlated with the SPECMAP age-model. The results highlight 4 glacial cycles, incorporating Marine Isotope Stage (MIS) 1 through to MIS 11. Isotopically heavier 18O values at ~460cm, ~345cm, 150cm, and 30cm correspond respectively to MIS 10 (359 kyr BP), MIS 8 (260 kyr BP), MIS 6 (140 kyr BP) and the LGM (20 kyr BP). Sedimentation rates are typically low, <1 cm/kyr to ~4 cm/kyr. The higher sedimentation rates are evident at glacial / interglacial terminations, but then drop off rapidly in the interglacials.

Data and Resources

Additional Info

Field Value
Title Age vs Depth profile of core GC11, collected from the Capricorn Channel off the Eastern Australian Coast
Type Dataset
Language English
Licence Creative Commons Attribution 2.5 Australia
Data Status inactive
Update Frequency never
Landing Page https://data.gov.au/data/dataset/50bbf3bd-2efb-4b22-ac04-beb51ce98bd4
Date Published 2017-06-24
Date Updated 2023-08-11
Contact Point
National Institute of Water and Atmosphere (NIWA)
h.bostock@niwa.co.nz
Temporal Coverage 2017-06-24 15:41:05
Geospatial Coverage {"type": "Polygon", "coordinates": [[[151.5, -24.5], [153.0, -24.5], [153.0, -23.0], [151.5, -23.0], [151.5, -24.5]]]}
Jurisdiction Commonwealth of Australia
Data Portal data.gov.au
Publisher/Agency National Institute of Water and Atmosphere (NIWA)