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Crenostrea sp. cf. C. cannoni (Marwick 1928) (Bivalvia: Ostreoidea) and associated fauna from east of Heard Island, Kerguelen Plateau: age and palaeoenvironmental value

Citation

Quilty, PG and Clark, N and Hibberd, T, Crenostrea sp. cf. C. cannoni (Marwick 1928) (Bivalvia: Ostreoidea) and associated fauna from east of Heard Island, Kerguelen Plateau: age and palaeoenvironmental value, Alcheringa, 39, (2) pp. 200-206. ISSN 0311-5518 (2015) [Refereed Article]

Copyright Statement

2014 Association of Australasian Palaeontologists

DOI: doi:10.1080/03115518.2015.965545

Abstract

A well-preserved single left valve of a large oyster embedded in coarse volcaniclastic sediment and identified as Crenostrea sp. cf. C. cannoni (Marwick, 1928) was dredged from east of Heard Island, central southern Indian Ocean. It is accompanied by a fragment of the pectinid bivalve Austrochlamys sp. indet. and foraminifera. Austrochlamys sp. indet. and other bivalve fragments were analysed for 87Sr/86Sr, δ18O and δ13C, the results yielding an age of 17.5 Ma (later early Miocene) and a water temperature of ca 10C. Foraminifera and sediment characteristics indicate that accumulation occurred in mid-continental shelf depths, at a location where nutrient supply was good.

Item Details

Item Type:Refereed Article
Keywords:sub-Antarctic, oysters, foraminifera, isotope dating, early Miocene
Research Division:Earth Sciences
Research Group:Geology
Research Field:Palaeontology (incl. Palynology)
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Earth Sciences
Author:Quilty, PG (Dr Pat Quilty)
ID Code:96608
Year Published:2015
Web of Science® Times Cited:1
Deposited By:Earth Sciences
Deposited On:2014-11-12
Last Modified:2017-11-06
Downloads:0

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