Data

A geochemical characterisation of deep-sea floor sediments of the northern Lord Howe Rise

Australian Ocean Data Network
Radke, L. ; Heap, A.D. ; Douglas, G. ; Nichol, S. ; Trafford, J.
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://pid.geoscience.gov.au/dataset/ga/70576&rft.title=A geochemical characterisation of deep-sea floor sediments of the northern Lord Howe Rise&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/70576&rft.description=This study presents new information on the regional geochemical characteristics of deep-sea floor sediments (1300 - 2423 m water depth) on the Lord Howe Rise (deep-sea plateau) and Gifford Guyot (seamount/tablemount), remote areas off eastern Australia. The aim was to provide a coherent synthesis for a suite of geochemical data that can be used to make habitat inferences and to develop surrogates of biodiversity. Sediment characteristics analysed were mineralogy, organic carbon and nitrogen concentrations and isotopic compositions, and concentrations of major and trace elements. We also measured parameters that convey information about the reactivity of organic matter and on the bio-availability of bioactive trace elements (e.g. chlorin indices and acid-extractable elements). Surface sediments from the region were calcareous oozes that were carbon-lean (0.26±0.1%) and had moderate to high chlorin indices (0.62 - 0.97)..Maintenance and Update Frequency: unknownStatement: Unknown&rft.creator=Radke, L. &rft.creator=Heap, A.D. &rft.creator=Douglas, G. &rft.creator=Nichol, S. &rft.creator=Trafford, J. &rft.date=2011&rft.coverage=westlimit=159.0; southlimit=-32.0; eastlimit=159.5; northlimit=-31.0&rft.coverage=westlimit=159.0; southlimit=-32.0; eastlimit=159.5; northlimit=-31.0&rft_rights=&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&rft_rights=4.0&rft_rights=http://creativecommons.org/licenses/&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Australian Government Security ClassificationSystem&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=External Publication&rft_subject=Scientific Journal Paper&rft_subject=geochemistry&rft_subject=habitat&rft_subject=marine biodiversity&rft_subject=marine survey&rft_subject=marine&rft_subject=AU-NSW&rft_subject=EARTH SCIENCES&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International Licence
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Australian Government Security ClassificationSystem

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Brief description

This study presents new information on the regional geochemical characteristics of deep-sea floor sediments (1300 - 2423 m water depth) on the Lord Howe Rise (deep-sea plateau) and Gifford Guyot (seamount/tablemount), remote areas off eastern Australia. The aim was to provide a coherent synthesis for a suite of geochemical data that can be used to make habitat inferences and to develop surrogates of biodiversity. Sediment characteristics analysed were mineralogy, organic carbon and nitrogen concentrations and isotopic compositions, and concentrations of major and trace elements. We also measured parameters that convey information about the reactivity of organic matter and on the bio-availability of bioactive trace elements (e.g. chlorin indices and acid-extractable elements). Surface sediments from the region were calcareous oozes that were carbon-lean (0.26±0.1%) and had moderate to high chlorin indices (0.62 - 0.97)..

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Maintenance and Update Frequency: unknown
Statement: Unknown

Issued: 2011

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159.5,-31 159.5,-32 159,-32 159,-31 159.5,-31

159.25,-31.5

text: westlimit=159.0; southlimit=-32.0; eastlimit=159.5; northlimit=-31.0

Subjects
AU-NSW | Earth Sciences | External Publication | Published_External | Scientific Journal Paper | geochemistry | geoscientificInformation | habitat | marine | marine biodiversity | marine survey |

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Link to Publication

doi : http://dx.doi.org/10.1016/j.dsr2.2010.10.047

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