Citation

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Smith, T.E. & Mantle, D.J., 2013. Late Permian palynozones and associated CA-IDTIMS dated tuffs from the Bowen Basin, Australia. Record  2013/046. Geoscience Australia, Canberra.

Abstract

As part of a continuing program to date Permian plant microfossil zones using CA-IDTIMS dating, 11 tuff and 18 sedimentary core samples were examined from the Bowen Basin succession intersected in APLNG Meeleebee 5, a CSG well spudded in the Surat Basin, Queensland. The Bowen Basin consists of terrestrial and marine sediments interspersed with numerous tuff layers and economic coal seams. Palynological strew-slides were examined using a light microscope to identify taxa. Quantitative analyses, with counts up to 100 specimens, were undertaken. Almost all the plant microfossil assemblages analysed from the Meeleebee 5 core belong to the Price (1997) APP5 spore-pollen zone, and one may belong to the younger APP6 zone. The APP5 index species, Dulhuntyispora parvithola was present throughout the section. The APP5005 index species Microreticulatisporites bitriangularis was also present in many samples and the Micrhystridium evansii acme event was readily identified. Triquitrites proratus, a species usually restricted to APP6, was identified near the top of the succession, although no other species typical of APP6 were found. When compared with CA-IDTIMS tuff ages, the Dulhuntyispora parvithola zone spans around five million years, almost extending to the Permian-Triassic boundary. Additionally, the Microreticulatisporites bitriangularis Subzone and Microstridium evansii event are both younger than previously estimated. By combining the results of the palynology and CA-IDTIMS dating, numeric ages are attached to palynostratigraphic units, aiding regional and global correlations of the palynofloras and economic coal-bearing sequences of the basin.
Google map showing geographic bounding box with values North bound -26.241 East bound 149.197 West bound 149.196 South bound -26.242
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dataset - GA Publication - Record

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license
Creative Commons Attribution 3.0 Australia Licence

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Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

2013

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dataset

Topic Category

geoscientificInformation

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GA Publication
Record
geochronology
palaeontology
environmental
Earth Sciences

Resource Language

English

Resource Character Set

utf8

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unclassified

Geographic Extent

North bound
-26.241
East bound
149.197
West bound
149.196
South bound
-26.242

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Unknown

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onLine

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docx
pdf

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Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
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Metadata File Identifier

afc5a756-ac23-2a0e-e044-00144fdd4fa6

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ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

Metadata Date Stamp

2011-10-21

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

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pointOfContact
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
Downloads
For information on acquiring this product,
please contact Geoscience Australia Client Services via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).