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Fossil shorelines of the Ulverstone district

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Chick, NK (1971) Fossil shorelines of the Ulverstone district. Papers and Proceedings of the Royal Society of Tasmania, 105. pp. 29-40. ISSN 0080-4703

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Abstract

The Ulverstone district covers part of the coastal lowlands
of the North-West Coast district of Tasmania,
centred upon the Leven River, some 12 miles west of
the southernmost point on the Tasmanian shore of Bass
Strait. A series of well marked older shorelines is found
along and below the coastal escarpment. Included are
shorelines at 110, 65, 45, 35, and 3 feet above mean
higher high water mark, which, at Ulverstone, is 10 feet
above State Datum. The highest shoreline is interpreted
as representing a late high sea level of the MindelRiss
Interglacial.
The 65 foot shoreline, the Ulverstone shoreline (45
feet) and the Glenhaven shoreline (35 feet) are interpreted
as being Last Interglacial. The Glenhaven shoreline
is associated with cobble material thought to be
marine-redistributed glacifluvial material from the Forth
river. It may constitute further evidence for two phases
of Tasmanian glaciation.
The Brigadoon shoreline is thought not to require a
rise in sea level to 3 feet to explain its morphology.
Its age is interpreted as being Holocene. Benches on the
sides of Buttons Creek and Claytons Rivulet are
structural in origin. but fragments of valley fill terraces
in the Leven valley are thought to be related to older
shorelines. Parallels are drawn between landforms of
the present coastline and landforms existing on fossil
shorelines in the area and between fossil shorelines at
Ulverstone and those elsewhere in Tasmania and King
Island.

Item Type: Article
Keywords: Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, UTAS Library
Journal or Publication Title: Papers and Proceedings of the Royal Society of Tasmania
Page Range: pp. 29-40
ISSN: 0080-4703
Collections: Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:

Copyright Royal Society of Tasmania

Date Deposited: 18 May 2012 02:37
Last Modified: 15 Sep 2017 00:39
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