Quantifying the isotopic composition of oxygen and carbon with increasing depth in core GC11, located in the Capricorn Channel

Oxygène Biomasse et diversité microbienne

A gravity core (GC11) was collected from a depth of 502 mbsl 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 ~30cm depth. From matching the 18O G. ruber curve with Martinson et al. (1987), 4 glacial cycles can be determined, 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, MIS 8, MIS 6 and the LGM. The d13C shows a trough lagging behind the 18O high during the glacial, although there are considerable fluctuations between MIS 8 and 6.

Données et ressources

ANU_Bostock_GC11_1_data.xls

XLS Ouvrir
aodn: bluenet_datasets_capricorn_channel

Core data - Capricorn Channel

WMS Ouvrir
Unnamed resource

HTML Ouvrir
Unnamed resource

HTML Ouvrir
Unnamed resource

HTML Ouvrir
Unnamed resource

License Graphic

PNG Ouvrir
Unnamed resource

HTML Ouvrir
Unnamed resource

HTML Ouvrir
Unnamed resource

HTML Ouvrir

Informations supplémentaires

Date (publication)	2007-06-27
Statut	completed
Fréquence de mise à jour	notPlanned
Langue des métadonnées	en
Licence	Creative Commons Attribution 4.0
Métadonnées sources	ISO 19115 XML
Dernière mise à jour	2026-11-05
Créé	2026-11-05
API	package_show