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Immediate report of Victoria University of Wellington Antarctic Expedition 1988-89: VUWAE 33

Proposed Programme

Proposed Programme

Devonian strata from southern Victoria Land have been variously interpreted as marine (Vialov 1962, Allen 1962, Gevers et al 1971, Bradshaw 1981, Gevers and Twomey 1982) and non-marine (eg Gunn and Warren 1962. Webb 1963, Barrett and Kohn 1975, Plume 1978, Barrett 1979, Sherwood et al 1989); the debate largely results from the presence of trace fossils that have previously been considered to indicate marine environments in sediments which are strongly indicative of alluvial plain deposition.

The large scale setting of the Beacon Supergroup is also under debate with some authors holding the view that the Beacon was deposited in a foreland basin while others believe that the strata were deposited in a intracratonic basin.

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This program is examining both the local and large scale depositional setting of the Beacon in southern Victoria Land. Field work is concentrating on solving problems such as paleoenvironment, paleoslope, basin shape and provenance of the sediment, With computer based modelling being used to examine the regional tectonic setting.