[Parameters: Topic='SOLID EARTH', Term='ROCKS/MINERALS/CRYSTALS', Variable_Level_1='AGE DETERMINATIONS']
Basin Analysis of the Permo-Triassic Amery Group, Northern Prince Charles MountainsEntry ID: ASAC_1
Abstract: From the abstracts of some of the referenced papers:
Megafloral remains recovered from the Jetty Member and the upper part of the Flagstone Bench Formation, Amery Group include Dicroidium and Pagiophyllum. Dicrodium zuberi and D.crassinervis forma stelznerianum occur with Pteruchus dubius and support a Mid to Late Triassic age. A new species of conifer, Pagiophyllum papillatus, is recognised ... along with an undetermined coniferpollen cone.
An Australian National Antarctic Research Expedition in the summer of 1989-1990 made possible a reconnaisance of the avifauna of the Prince Charles Mountains, Mac.Robertson Land, Antarctica. Sixteen scientists, scattered widely throughout the range, were moved periodically by helicopter to new sites. A staff of nine people was located at Dovers Field Base near the base of Farley Massif. These people made opportunistic observations of birds from 26 December, 1989 to 18 February, 1990. The present report summarises their collective findings.
The East Antarctic Craton contains only one substantial outcrop of Palaeozoic-Mesozoic strata between 0 and 150 degrees East; this lies in Mac.Robertson Land, on the eastern margin of the northern Prince Charles Mountains. These rocks are known as the Amery Group (Mond 1972, McKelvey and Stephenson 1990) and comprise dominantly fluviatile sandstones, with subordinate shales, coals and conglomerates. The lower formations of the Amery Group, the Radok Conglomerate and Bainmedart Coal Measures, contain a diverse Stage 5 palynomorph assemblage indicating a Baigendzhinian-Tatarian age (late Early-Late Permian), hereafter abbreviated as mid-Late Permian. The uppermost formation within the Amery Group, the Flagstone Bench Formation, was studied in detail by Webb and Fielding (1993), who revised the stratigraphy and defined a new member, the Jetty Member. They described for the first time a Triassic megaflora from this unit, considerably extending the time range for the Amery Group, which was previously regarded as entirely mid to Late Permian in age.
Start Date: 1989-09-30Stop Date: 1993-03-31
Paleo Temporal Coverage
Quality Values provided in temporal coverage are approximate only.
Access Constraints PDF copies of some of the referenced papers and the field notebook used during the study are available for download to AAD staff only from the provided URL.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_508 when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Size: 19 MB
Distribution Format: PDF
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 3 9479 2485
Fax: +61 3 9479 1272
Email: john.webb at latrobe.edu.au
La Trobe University Department of Earth Sciences
Province or State: Victoria
Postal Code: 3083
Webb, J.A. and Fielding, C.F. (1999), Debris flow and sheet flood fans of the northern Prince Charles Mountains, east Antarctica, 317-341
Miller, A.J. and Gupta, A. (eds) (1999), Varieties of fluvial form, 317-341, John Wiley, London, 978-0-471-97351-5, http://www.wiley.com/WileyCDA/WileyTitle/productCd-0471973513.html
Fielding, C.R. and Webb, J.A. (1996), Facies and cyclicity of the Late Permian Bainmedart Coal Measures in the northern Prince Charles Mountains, MacRobertson Land, Antarctica., Sedimentology, 43, 295-322
Fielding, C.R. and Webb, J.A. (1995), Sedimentology of the Permian Radok conglomerate in the Beaver Lake Area of MacRobertson Land, east Antarctica., Geological Magazine, 132, 51-63
Cantrill, D.J., Drinnan, A.N. and Webb, J.A. (1995), Late Triassic plant fossils from the Prince Charles Mountains, East Antarctica., Antarctic Science, 7, 51-62
Webb, J.A. and Fielding, C.R. (1993), Permo-Triassic sedimentation within the Lambert Graben, northern Prince Charles Mountains, East Antarctica., 513-520
Findlay, R.H., Unrug, R., Banks, M.R. and Veevers, J.J. (eds) (1993), Gondwana Eight: assembly, evolution and dispersal, 513-520, A.A. Balkema, Rotterdam.
Webb, J.A. and Fielding, C.R. (1993), Stratigraphical note - Revised stratigraphical nomenclature for the Permo-Triassic Flagstone Bench Formation, northern Prince Charles Mountains, East Antarctica., Antarctic Science, 5, 409-410
Heatwole, H., Betts, M., Webb, J. and Crosthwaite, P. (1992), Birds of the northern Prince Charles Mountains, Antarctica, Corella, 5, 120-122
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Creation and Review Dates
DIF Creation Date: 2000-07-12
Last DIF Revision Date: 2014-01-10