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Early Miocene silicified limestone from Temma, northwestern Tasmania: further evidence of substantial post-Early Miocene uplift or tilting of Tasmania

Citation

Quilty, PG and Seymour, DB, Early Miocene silicified limestone from Temma, northwestern Tasmania: further evidence of substantial post-Early Miocene uplift or tilting of Tasmania, Royal Society of Tasmania, Hobart. Papers and Proceedings, 144, (1) pp. 43-50. ISSN 0080-4703 (2010) [Refereed Article]

Abstract

Silicified shallow-water Early Miocene (Longfordian) marine limestone occurs in altitudes to over 160 m, 12 km east of Temma in northwestern Tasmania, the highest elevation known to date for rocks of this age and environment of deposition. Age and environmental data are provided by Foraminifera, calcareous algae and poorly preserved macrofauna. Mode of silicification of Foraminifera varies systematically between suborders - miliolids and agglutinated species as internal moulds, nodosariids, rotaliids and cibicidids as volume-for-volume replacements. Foraminifera are benthic only. Miliolids dominate but preservation is too poor to allow statistically valid analysis. The locality provides only the second occurrence of Tenisonina tasmaniae Quilty, and, for the first time, it occurs with Sherbomina atkinsoni Chapman.

Item Details

Item Type:Refereed Article
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:68036
Year Published:2010
Deposited By:Earth Sciences
Deposited On:2011-03-09
Last Modified:2011-04-07
Downloads:0

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