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Abbravation: Quaternary Research

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Cambridge University Press

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10.1016/0046-8177(93)90201-q

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1096-0287

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Glaciations of the West Coast Range Tasmania

Authors: Eric A Colhoun
Publish Date: 1985/07
Volume: 24, Issue: 1, Pages: 39-59
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Abstract

Geomorphic stratigraphic palynologic and 14C evidence indicates that the West Coast Range Tasmania was glaciated at least three times during the late Cenozoic The last or Margaret Glaciation commenced after 30000 yr BP culminated about 19000 yr BP and ended by 10000 yr BP During this period a small ice cap ca 250 m thick and cirque and valley glaciers covered 108 km2 The glacial deposits show little chemical weathering or erosional dissection The snow line ranged from 690 to 1000 m with an average of 830 m for the ice cap Mean temperature was 65°C below the present temperature During the preceding Henty Glaciation a 300 to 400mthick ice cap and outlet glaciers exceeded 1000 km2 The glacial deposits are beyond 14C assay They are more weathered chemically and more dissected than Margaret age deposits and the degree suggests a prelast interglaciation age 130000 yr BP The snow line of the ice cap lay at 740 m and annual temperature was reduced by 7°C Ice of the earliest Linda Glaciation slightly exceeded that of the Henty Glaciation but had a similar distribution The glacial deposits are intensely weathered have reversed magnetization and overlie a paleosol containing pollen of Tertiary type An early Pleistocene or Tertiary age is indicated

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References

citation title=Glacial action in Tasmania citation author=Montgomery A citation publication date=1894 citation journal title=Papers and Proceedings of the Royal Society of Tasmania citation firstpage=159 citation lastpage=169

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  2. The Timing of Late Pleistocene Mammalian Extinctions in North America
  3. An Altitudinal Cline in Tropical African Grass Floras and Its Paleoecological Significance
  4. Tephrochronology of Late Wisconsin Deglaciation and Holocene Glacier Fluctuations Near Glacier Peak, North Cascade Range, Washington
  5. Determining the Exposure Age of a Karst Landscape
  6. Stable Isotope Stratigraphy of a Late Last Interglacial Speleothem from Rana, Northern Norway
  7. Holocene Paleoenvironmental Change in the Kenyan Central Rift as Indicated by Micromammals from Enkapune Ya Muto Rockshelter
  8. Paleoecological Studies at Lake Patzcuaro on the West-Central Mexican Plateau and at Chalco in the Basin of Mexico 1
  9. Some Effects of Partial Recrystallisation on 14 C dating Late Pleistocene Corals and Molluscs
  10. Some Effects of Partial Recrystallisation on 14 C dating Late Pleistocene Corals and Molluscs
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