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https://hdl.handle.net/2440/72902
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Type: | Journal article |
Title: | A new subdivision of the Albian spore-pollen zonation of Australia |
Author: | Wagstaff, B. Gallagher, S. Trainor, J. |
Citation: | Review of Palaeobotany and Palynology, 2012; 171:57-72 |
Publisher: | Elsevier Science BV |
Issue Date: | 2012 |
ISSN: | 0034-6667 1879-0615 |
Statement of Responsibility: | Barbara E. Wagstaff, Stephen J. Gallagher and Jessica K. Trainor |
Abstract: | The Albian spore-pollen zonation of Australia is used to date terrestrial sequences from Antarctica to New Zealand. A detailed qualitative and quantitative study of the Albian Crybelosporites striatus and Coptospora paradoxa Zones in the Gippsland Basin confirms many of the published zone indicator taxa are reliable. The first and last appearance datums can be further refined quantitatively based on the upward reduction in the abundance of seed fern produced pollen. Three subzones are defined in the C. paradoxa Zone using a combination of presence/absence range and abundance data. These are (from oldest to youngest): the Trilobosporites trioreticulosus, Pilosisporites grandis and Cicatricosisporites cuneiformis Subzones. This latter subzone presents a new subdivision of this zone in the Gippsland Basin in southeast Australia. All these subzonal divisions have sufficient resolution to facilitate reservoir-scale correlation of fluvial strata confined to the C. paradoxa Zone in the Gippsland Basin. This study has the first record of Taxodiaceaepollenites hiatus in the Early Cretaceous of Australia and a new species Aequitriradites burgerii is described. A re-examination of the chronology of the zones in the Cretaceous marine basins confirms a 103.5. Ma age for the top of the C. paradoxa Zone, however the chronology of the base of this zone is unclear in the Albian. © 2011 Elsevier B.V. |
Rights: | © 2011 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/j.revpalbo.2011.11.003 |
Grant ID: | http://purl.org/au-research/grants/arc/LP0989203 http://purl.org/au-research/grants/arc/LP0989203 |
Published version: | http://dx.doi.org/10.1016/j.revpalbo.2011.11.003 |
Appears in Collections: | Aurora harvest Australian School of Petroleum publications |
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