Data

Survey data collected from Core E53-10, located on the edge of the South Tasman rise

Australian Ocean Data Network
Armand, Leanne ; De Deckker, Patrick ; Pichon, Jean-Jacques
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=http://catalogue-aodn.prod.aodn.org.au/geonetwork/srv/eng/search?uuid=5bde8770-56b2-11dc-b9db-00188b4c0af8&rft.title=Survey data collected from Core E53-10, located on the edge of the South Tasman rise&rft.identifier=http://catalogue-aodn.prod.aodn.org.au/geonetwork/srv/eng/search?uuid=5bde8770-56b2-11dc-b9db-00188b4c0af8&rft.description=Most globally linked climatic records dealing with continuous longterm change are derived from the ocean sea-floors where sedimentation of microplankton is accumulated on a time scale of several centimetres per 1000 years. Variations in microfossil records over time are used as proxies for changes in the oceans. Core E53-10 was sampled in April 1993 while visiting the Antarctic Research Facility at Florida State University. Preliminary diatom analysis of prepared slides indicate that the core contains REWORKED species. The presence of Actinocyclus ingens, Hemidiscus karstenii, Stephanopyxis spp, Denticulopsis spp and other non-Holocene/late Quaternary species were encountered throughout all the samples examined in the first two meters of the core. Upon this observation, the core was abandoned for further study. Independent results of the zinc-silica ratio analysis performed on sub-samples also indicates an anomalous response, which is interpreted to be resultant of the reworked material incorporated in the core. This region appears to be under a sedimentary reworked environment imposed by the drop off to the north of the South Tasman Rise.Maintenance and Update Frequency: notPlannedStatement: Material was collected using a piston core. It was processed as outlined in the 'methodology' document uploaded with this record. On average, 3 gm wet weight samples were processed.Statement: Preliminary diatom analysis of the prepared slides indicate that the core contains reworked species. The presence of Actinocyclus ingens, Hemidiscus karstenii, Stephanopyxis spp, Denticulopsis spp and other non-Holocene/late Quaternary species were encountered throughout all the samples examined in the first two meters of the core. Upon this observation, the core was abandoned for further study. Independent results of the zinc-silica ratio analysis performed on sub-samples also indicates an anomalous response, which is interpreted to be resultant of the reworked material incorporated in the core. Parameters: Core depth (cm), diatom species and number counted at each depth interval.&rft.creator=Armand, Leanne &rft.creator=De Deckker, Patrick &rft.creator=Pichon, Jean-Jacques &rft.date=2007&rft.coverage=westlimit=147; southlimit=-53.00; eastlimit=175; northlimit=-29.00&rft.coverage=westlimit=147; southlimit=-53.00; eastlimit=175; northlimit=-29.00&rft.coverage=uplimit=4038.35; downlimit=4026.6&rft.coverage=uplimit=4038.35; downlimit=4026.6&rft_rights= http://creativecommons.org/licenses/by/2.5/au/&rft_rights=http://i.creativecommons.org/l/by/2.5/au/88x31.png&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Graphic&rft_rights=Creative Commons Attribution 2.5 Australia License&rft_rights=http://creativecommons.org/international/au/&rft_rights=WWW:LINK-1.0-http--related&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Text&rft_rights=The citation in a list of references is: citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link).&rft_rights=Users are kindly requested to contact the principal investigator for authorisation before utilising or reproducing any material&rft_rights=Users should be aware that the core contains REWORKED species&rft_rights=Creative Commons Attribution 2.5 Australia License http://creativecommons.org/licenses/by/2.5/au&rft_subject=biota&rft_subject=climatologyMeteorologyAtmosphere&rft_subject=DIATOMS&rft_subject=EARTH SCIENCE&rft_subject=BIOLOGICAL CLASSIFICATION&rft_subject=PLANTS&rft_subject=MICROALGAE&rft_subject=MICROFOSSILS&rft_subject=PALEOCLIMATE&rft_subject=OCEAN/LAKE RECORDS&rft_subject=Reworked species&rft_subject=Eltanin&rft_subject=E53-10&rft_subject=core_depth&rft_subject=taxonomic_name&rft_subject=taxonomic_group_count&rft.type=dataset&rft.language=English Access the data
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The citation in a list of references is: citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link).

Users are kindly requested to contact the principal investigator for authorisation before utilising or reproducing any material

Users should be aware that the core contains REWORKED species

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Brief description

Most globally linked climatic records dealing with continuous longterm change are derived from the ocean sea-floors where sedimentation of microplankton is accumulated on a time scale of several centimetres per 1000 years. Variations in microfossil records over time are used as proxies for changes in the oceans.

Core E53-10 was sampled in April 1993 while visiting the Antarctic Research Facility at Florida State University. Preliminary diatom analysis of prepared slides indicate that the core contains REWORKED species. The presence of Actinocyclus ingens, Hemidiscus karstenii, Stephanopyxis spp, Denticulopsis spp and other non-Holocene/late Quaternary species were encountered throughout all the samples examined in the first two meters of the core. Upon this observation, the core was abandoned for further study. Independent results of the zinc-silica ratio analysis performed on sub-samples also indicates an anomalous response, which is interpreted to be resultant of the reworked material incorporated in the core.

This region appears to be under a sedimentary reworked environment imposed by the drop off to the north of the South Tasman Rise.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: Material was collected using a piston core. It was processed as outlined in the 'methodology' document uploaded with this record. On average, 3 gm wet weight samples were processed.
Statement: Preliminary diatom analysis of the prepared slides indicate that the core contains reworked species. The presence of Actinocyclus ingens, Hemidiscus karstenii, Stephanopyxis spp, Denticulopsis spp and other non-Holocene/late Quaternary species were encountered throughout all the samples examined in the first two meters of the core. Upon this observation, the core was abandoned for further study. Independent results of the zinc-silica ratio analysis performed on sub-samples also indicates an anomalous response, which is interpreted to be resultant of the reworked material incorporated in the core.

Parameters: Core depth (cm), diatom species and number counted at each depth interval.

Notes

Credit
Florida State University
Credit
Institute of Antarctic and Southern Ocean Studies (IASOS)
Credit
Institut Français pour la Recherche et Technologie Polaires (IFRTP)
Credit
Terres Australes et Antarctiques Françaises (TAAF)
Credit
Australian Postgraduate Research Award (APRA)
Purpose
To construct the biogeographic and physical parameter relationship of diatom species observed in the sediments. Variations in microfossil records over time are also used as proxies for changes in the oceans.

Issued: 30 08 2007

Data time period: 1993-04 to 1993-04

This dataset is part of a larger collection

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175,-29 175,-53 147,-53 147,-29 175,-29

161,-41

text: westlimit=147; southlimit=-53.00; eastlimit=175; northlimit=-29.00

text: uplimit=4038.35; downlimit=4026.6

Subjects
BIOLOGICAL CLASSIFICATION | Diatoms | E53-10 | EARTH SCIENCE | Eltanin | MICROALGAE | Microfossils | OCEAN/LAKE RECORDS | PALEOCLIMATE | PLANTS | Reworked species | biota | climatologyMeteorologyAtmosphere | core_depth | taxonomic_group_count | taxonomic_name |

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Other Information
Methodology (App 1-1.pdf)

uri : https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/5bde8770-56b2-11dc-b9db-00188b4c0af8/attachments/App 1-1.pdf

Diatom counts through core E53-10 (App 6-1.pdf)

uri : https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/5bde8770-56b2-11dc-b9db-00188b4c0af8/attachments/App 6-1.pdf

Identifiers
  • global : 5bde8770-56b2-11dc-b9db-00188b4c0af8
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