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Origin and evolution of the sub.-Antarctic islands: the foundation

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Quilty, PG (2007) Origin and evolution of the sub.-Antarctic islands: the foundation. Papers and Proceedings of the Royal Society of Tasmania, 141 (1). pp. 35-58. ISSN 0080-4703

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Abstract

Sub-Antarctic islands have a diversity of origins in detail but most are volcanic and very young suggesting that they are short-lived and
that the distribution would have been very different a few million years ago. Ihey contrast with the common tourist brochure concept of
oceanic islands. As the Antarctic Plate is virtually static, the islands seldom show signs of association with long-lived linear island chains and
most thus stand alone. Longer-lived islands are either on submarine plateaux or are continental remnants of the dispersion of Gondwana.
The islands are classified in relation to raised sea-floor, transform fault, triple junction, subduction zone, submarine plateau, submerged
continent or continental. Many are difficult of access and poorly known geologically. Their geological history controls their many other
roles such as sites as observatories, or for study of colonisation, evolution and speciation rates.

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. 35-58
ISSN: 0080-4703
Collections: Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:

Copyright Royal Society of Tasmania

Date Deposited: 17 May 2012 04:21
Last Modified: 15 Sep 2017 01:06
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