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Palaeoenvironment of the Darlington Limestone (Early Permian)Tasmania


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Brill, KG (Jnr.) 1982 , 'Palaeoenvironment of the Darlington Limestone (Early Permian)Tasmania' , Papers and Proceedings of the Royal Society of Tasmania, vol. 116 , pp. 67-84 .

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The Early Permian Darlington Limestone in the Tasmania Basin consists of fossiliferous
mudstone, siltstone and impure limestone. It was deposited in a somewhat restricted basin
with uplands on the northeast and east, the northwest, and probably the southwest.
Icebergs from glaciers on the uplands or sea-ice may have transported erratic lonestones
into the basin. Cold, low salinity water is indicated by a foramol fauna which contained
many individuals but relatively tew genera and which is rich in foraminifera,
bryozoans, spiriferids, and pelecypods.
Hydraulic energy was generally low. Little sorting and few sedimentary structures
were observed. Evidence of current action is mainly on the periphery of the basin and
suggests currents from the southwest. Such evidence is mostly the orientation of fossils.
Islands such as the Beaconsfield-Frankford island, and shallows probably impeded current
action in the basin.

Item Type: Article
Authors/Creators:Brill, KG (Jnr.)
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
ISSN: 0080-4703
Collections: Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
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Copyright Royal Society of Tasmania

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