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Marion Bay shoreline morphology


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Van de Geer, G 1972 , 'Marion Bay shoreline morphology', Honours thesis, University of Tasmania.

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At Marion Bay, a well marked line of high abandoned cliffs
cut in basalt, sandstone and dolerite is found. In front of these
cliffs is a wide sandy platform. A compact 1coffee rock' B horizon
is a characteristic feature of the deposit. Elsewhere, a deposit of
weathered basalt gravels occurs. The age of the deposits is thought
to be Pleistocene but their origin is controversial.
A spit almost closes off a shallow lagoon behind which
extensive development of salt marshes has taken place. The morphology
of the spit is thought not to require a Postglacial fall in sea level.
Trend-surface mapping of sedimentary parameters of the beach
sand reveals the pattern of spatial variation to be complex and
temporal variation to be minimal., The pattern of variation appears to
be predominantly caused by the carbonate fraction.

Item Type: Thesis - Honours
Authors/Creators:Van de Geer, G
Keywords: van de Geer, Gus
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