Quantifying the isotopic composition of oxygen and carbon with increasing depth in core GC09, located in the Capricorn Channel

A gravity core (GC09) was collected from a depth of 166m within the Capricorn Channel, southern Great Barrier Reef (GBR). The data from stable isotopes of Globigerinoides ruber were analysed to allow a preliminary understanding of the hemipelagic sedimentary environment over the last glacial / interglacial cycle. The results suggest that the core reaches the Last Glacial Maximum (LGM) at ~60cm depth, corresponding to isotopically heavier 18O. Other parameters were also analysed to assist in reaching this conclusion. This would give a relatively low sedimentation rate of 3cm / kyr, compared to 50cm / kyr for similar depths in the west Queensland trough.

Data and resources

ANU_Bostock_GC09_1_data.xls

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aodn: bluenet_datasets_capricorn_channel

Core data - Capricorn Channel

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License Graphic

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Additional information

Date (publication)	2007-06-25
Status	completed
Update frequency	notPlanned
Metadata language	en
License	Creative Commons Attribution 4.0
Source metadata	ISO 19115 XML
Last updated	2026-11-05
Created	2026-11-05
API	package_show