Trace fossils and their relationship to the sediment in the Beacon supergroupEntry ID: K026_1976_1977_NZ_1
Abstract: The trace fossils in Devonian age sediments of the Lower Beacon supergroup were observed and measured to determine their relationship to sediment. Although they are not age diagnostic, the trace fossils give many significant clues as to the type of environment in which the animals lived since a change in the type of trace fossil indicates a change in conditions, even though the sediment remains ... the same. The trace fossils include vertical, sheetlike, septate burrows which tend to weather out as ribbon-like structures on the surface of sandstone beds (Heimdallia chatwini). Arthropod trackways (Diplichnites) and other trace fossils were also studied. Many photographs and measurements were taken. The areas visited included Mt. Fleming, the Heimdall Glacier region and Plane Table in the Asgaard Range, Table Mountain near the Ferrar Glacier, and Mt. Crean in the Skelton neve.
Start Date: 1976-12-22Stop Date: 1977-01-27
ISO Topic Category
Quality Canterbury Museum holds over 2000 rock specimens from Antarctica. Most of these represent the lithologies of the Beacon Supergroup of rocks and were collected during several NZARP events over a number of seasons in the 1970s and 1980s. The collections were made at a number of sites in the Transantarctic Mountains of Victoria Land. In addition, small collections were made at Cape Adare and Cape ... Hallett.
Collected at the same time were fossils (in excess of 1200 specimens) of a variety of ages, but mostly Devonian (416-359 Ma), Permian (299-251 Ma) and Triassic (251-199 Ma). Represented among the fossils are plants, invertebrates (mostly arthropods, molluscs and brachiopods) and vertebrates (fish).
In the collections Antarctic rock have catalogue numbers with the prefix RA; fossils have the prefix AF. Rock samples and fossils specific to this expedition include:
Rocks RA530-613; RA657-773 from the Heimdall Glacier region; Asgard Range; Plane Table; Obelisk Ridge; Mt Fleming
Devonian invertebrates and fish from Lashly Mountains (Mt Crean)
Permian plants from Lashly Mountains (Mt Crean)
Triassic plants from west of Mt Fleming
Dr Norton Hiller
Curator of Geology
Rolleston Avenue, Christchurch 8013
Phone: +64 3 366 5000
Direct dial: +64 3 366 9429 ext 820
Fax: +64 3 366 5622
Access Constraints Access to samples follows the specifications of Canterbury Museum.
Data Set Progress
Phone: +64 3 364 2987 ext 3892
Fax: +64 3 364 2769
Email: margaret.bradshaw at canterbury.ac.nz
Department of Geological Sciences University of Canterbury Private Bag 4800
Postal Code: 8140
Country: New Zealand
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Antarctica New Zealand Private Bag 4745
Country: New Zealand
Bradshaw, M. Has exploitation begun in Antarctica? Geological Society of New Zealand newsletter 45: 7-9, 1978.
Bradshaw, M.A. Paleoenvironmental interpretations and systematics of Devonian trace fossils from the Taylor Group (Lower Beacon Supergroup), Antarctica. New Zealand journal of geology and geophysics 24: 615-652, 1981.
Bradshaw, M.A., Webers, G. The Devonian ... rocks of Antarctica. In: N.J. McMillan, A.F.Embry, D.J. Glass. Eds. Devonian of the World, Canadian Society of Petroleum Geologists, Calgary, Memoir 14, vol 1, 783-795. 1988.
Bradshaw, M.A. Ichnofaunas in Antarctic Devonian arenites. Abstracts of papers. Sediments 1990, International Sedimentological Congress, 59-60. 1990.
Bradshaw, M.A. The Devonian Pacific margin of Antarctica. In: M.R.A. Thomson, J.A. Crame, J.W. Thomson, eds., Geological evolution of Antarctica,Cambridge University Press, 722p, 193-197. 1991.
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Creation and Review Dates
DIF Creation Date: 2005-09-22
Last DIF Revision Date: 2009-03-25