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Age and palaeoenvironment of pliocene sediments, Cameron Inlet Formation, Eastern Flinders Island, Tasmania: implications for southeastern Australian biostratigraphy
Citation
Quilty, PG and Whitehead, JM and Lewis, D, Age and palaeoenvironment of pliocene sediments, Cameron Inlet Formation, Eastern Flinders Island, Tasmania: implications for southeastern Australian biostratigraphy, Papers and Proceedings of the Royal Society of Tasmania, 147 pp. 51-84. ISSN 0080-4703 (2013) [Refereed Article]
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Copyright Statement
Copyright 2013 The Royal Society of Tasmania
Official URL: http://rst.org.au/publications/
Abstract
A previously unrecorded thin unit of very Early Pliocene calcareous sediments of the Cameron Inlet Formation from two auger holes in central Flinders Island, Tasmania, has yielded a very diverse fauna of benthic Foraminifera and enough planktonic forms to allow fine correlation with international biostratigraphic standards (N19, approximately 5.3–4.4 Ma, or Lower Opoitian in New Zealand terminology). Ostracods are also recorded. It is older than an earlier recorded sample from North Patriarch Drain a few kilometres away. It lies within the Kalimnan of southeastern Australian stage nomenclature and probably equivalent to 1985 Molluscan Assemblage XVI. The sediments and faunas accumulated in very shallow, fully marine conditions, initially with some possible estuarine aspect that faded with time. The fauna is of well-known species, dominated by Parredicta kalimnensis (Parr, 1939). Other abundant and diverse forms are elphidiids and cibicidids. Agglutinated forms are almost absent and miliolids are diverse but minor components. The fauna includes a new polymorphinid genus and species that will be described elsewhere. The samples contain a bewildering array of unilocular forms. Water temperature appears to have been about 12°C. The Kalimnan Stage may encompass the entire Pliocene and two substages may be identifiable.
Item Details
Item Type: | Refereed Article |
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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 |
UTAS Author: | Quilty, PG (Dr Pat Quilty) |
UTAS Author: | Whitehead, JM (Dr Jason Whitehead) |
UTAS Author: | Lewis, D (Mr Dale Lewis) |
ID Code: | 94854 |
Year Published: | 2013 |
Deposited By: | Earth Sciences |
Deposited On: | 2014-09-18 |
Last Modified: | 2017-10-30 |
Downloads: | 5 View Download Statistics |
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