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New Palaeozoic deposits of the Victoria Group in the Eisenhower Range, northern Victoria Land, Antarctica

New Palaeozoic deposits of the Victoria Group in the Eisenhower Range, northern Victoria Land,... sThe complex evolution of the Devonian to Jurassic Transantarctic basin is still incompletely understood. In Victoria Land, the thickness and age span of the basin fill (Victoria Group) varies dramatically: several hundreds of metres of Palaeozoic glacigenic and fluviolacustrine deposits occur in southern Victoria Land and in the far north (lower Rennick Glacier area; Dow & Neall 1974), whereas basal Beacon Supergroup strata in the Deep Freeze Range and upper Rennick Glacier area are interpreted to be Late Triassic or even Early Jurassic in age (see e.g. Goodge & Fanning 2010, Schöner et al. 2011). In the Eisenhower Range, a key area connecting southern and northern Victoria Land, fluvial conglomerates and sandstone overlying the crystalline basement have previously been interpreted as the basal part of the Triassic to Early Jurassic Section Peak Formation (Schöner et al. 2011, Elsner et al. In press). Here we present new palynological data indicating a Permian age for these deposits, which may be equivalent to the Takrouna Formation in northern Victoria Land and the Weller Coal Measures in southern Victoria Land.sSample GIX-AG04/1 was collected during the Ninth German Antarctic North Victoria Land Expedition (GANOVEX IX, 2005/2006) from a c. 1 m thick lens of http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Antarctic Science Cambridge University Press

New Palaeozoic deposits of the Victoria Group in the Eisenhower Range, northern Victoria Land, Antarctica

Antarctic Science , Volume 26 (3): 2 – Oct 15, 2013
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Publisher
Cambridge University Press
Copyright
Copyright © Antarctic Science Ltd 2013 
ISSN
1365-2079
eISSN
0954-1020
DOI
10.1017/S0954102013000618
Publisher site
See Article on Publisher Site

Abstract

sThe complex evolution of the Devonian to Jurassic Transantarctic basin is still incompletely understood. In Victoria Land, the thickness and age span of the basin fill (Victoria Group) varies dramatically: several hundreds of metres of Palaeozoic glacigenic and fluviolacustrine deposits occur in southern Victoria Land and in the far north (lower Rennick Glacier area; Dow & Neall 1974), whereas basal Beacon Supergroup strata in the Deep Freeze Range and upper Rennick Glacier area are interpreted to be Late Triassic or even Early Jurassic in age (see e.g. Goodge & Fanning 2010, Schöner et al. 2011). In the Eisenhower Range, a key area connecting southern and northern Victoria Land, fluvial conglomerates and sandstone overlying the crystalline basement have previously been interpreted as the basal part of the Triassic to Early Jurassic Section Peak Formation (Schöner et al. 2011, Elsner et al. In press). Here we present new palynological data indicating a Permian age for these deposits, which may be equivalent to the Takrouna Formation in northern Victoria Land and the Weller Coal Measures in southern Victoria Land.sSample GIX-AG04/1 was collected during the Ninth German Antarctic North Victoria Land Expedition (GANOVEX IX, 2005/2006) from a c. 1 m thick lens of

Journal

Antarctic Science – Cambridge University Press

Published: Oct 15, 2013

References

  • Permian-Triassic Transantarctic basin
  • Stratigraphy and petrology of Permian and Triassic fluvial deposits in northern Victoria Land, Antarctica
  • Geology of the Lower Rennick Glacier, northern Victoria Land, Antarctica
  • In press. Reconstruction of the early Mesozoic plate margin of Gondwana by U–Pb ages of detrital zircons from northern Victoria Land, Antarctica
  • Physical volcanology and geological relationships of the Jurassic Ferrar Large Igneous Province, Antarctica
  • Composition and age of the East Antarctic Shield in eastern Wilkes Land determined by proxy from Oligocene-Pleistocene glaciomarine sediment and Beacon Supergroup sandstones, Antarctica
  • Depositional framework of Permian coal-bearing strata, southern Victoria Land, Antarctica
  • Early Permian palynostratigraphy of the northern Heimefrontfjella mountain range, Dronning Maud Land, Antarctica
  • Synchronous palynofloristic extinction and recovery after the end-Permian event in the Prince Charles Mountains, Antarctica: implications for palynofloristic turnover across Gondwana
  • Cuticular structure of some Indian lower Gondwana species of Glossopteris Brongniart. Part 1
  • A systematic description of the Triassic to Lower Jurassic Section Peak Formation in north Victoria Land (Antarctica)