Chemical and isotopic characterisation and sedimentation rates in Princess Charlotte Bay, Queensland

Chemical and isotopic characterisation of Recent sediments from Princess Charlotte Bay reveal a broad homogeneous sediment that has only a slight increase in CaC03 content from the shore to the reef. Carbon isotopic ratios of the organic fraction indicate that the carbon is 95 per cent oceanic. Kaolinite content is uniform at 4 weight per cent. The change from terrestrial/river to lagoonal sediment characteristics is sharp and occurs within 1km of the shoreline. The change from lagoonal to reefal sediment characteristics is equally as sharp and may be localised. The term near-shore mud is preferable to terrigenous mud. Sedimentation rates are in the range 2.3-6.1 mm/yr. with mixed layers up to 10 cm thick, as determined by the 210Pb method. 137Cs determinations of sedimentation rate are not in disagreement, but are likely to yield ambiguous results in the Great Barrier Reef Province, because of diffusive redistribution, owing to the low distribution coefficient, KD = 420-800, measured in lagoonal sediments.

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Date (Publication)
1983-01-01T00:00:00
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Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/81148

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Bureau of Mineral Resources, Geology and Geophysics

 Canberra
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Torgersen, T.

 1
Author

Chivas, A.R.

 2
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Chapman, A.

 3
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BMR Journal of Australian Geology and Geophysics

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8:3:191-200

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Commonwealth of Australia (Geoscience Australia)
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Commonwealth of Australia (Geoscience Australia)

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Australian and New Zealand Standard Research Classification (ANZSRC)

  • Earth Sciences

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Creative Commons Attribution 4.0 International Licence

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4.0

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2018-11-01T00:00:00
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English
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Commonwealth of Australia (Geoscience Australia)

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Journal article (pdf)

Journal article (pdf)

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Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
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https://www.protectivesecurity.gov.au/Pages/default.aspx

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Unclassified

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urn:uuid/fae9173a-7059-71e4-e044-00144fdd4fa6

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English
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UTF8
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Commonwealth of Australia (Geoscience Australia)

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AGSO BMR Journal

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eCatId/81148

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https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/fae9173a-7059-71e4-e044-00144fdd4fa6

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2018-04-20T06:10:03
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2014-06-03T00:00:00

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AU/NZS ISO 19115-1:2014

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ISO 19115-1:2014

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ISO 19115-3

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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

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Version 2.0, September 2018

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https://pid.geoscience.gov.au/dataset/ga/122551

 
 

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