Data

Phytolith recovery from core MD88-779

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=ed00c7e0-5aa4-11dc-bd3f-00188b4c0af8&rft.title=Phytolith recovery from core MD88-779&rft.identifier=http://catalogue-aodn.prod.aodn.org.au/geonetwork/srv/eng/search?uuid=ed00c7e0-5aa4-11dc-bd3f-00188b4c0af8&rft.description=Core MD88-779 was taken during the 1988 French APSARA IV cruise in the South East Indian Ocean. The core was situated on the South Tasman Rise (47º50.690S, 146º32.750E) at a depth of 2260m. Although the core recovered was 6.7m long, only the top 2.6m were studied as preliminary investigations had indicated that this section covered the last two glacial cycles. Analysis of the sediment identified phytoliths in the core material. This is significant as this was the first known report of phytoliths in core material this south of Australia. Phytolith material was observed sporadically down-core at the following levels; 0, 130, 140, 220 and 230 cm (approximately falling within the Holocene, 100-110 ka, and 170 ka respectively). The phytolith casts most readily identifiable were those comprising the grasses, although larger plate-like casts of trees and shrubs were observed.Maintenance and Update Frequency: notPlannedStatement: The resource illustrates the phytoliths identified, as well as the recovery depth in the core and the length of the specimen. Parameters: Scale bar and length of specimens(micro-meters), phytolith collection depth in core (cm).&rft.creator=Armand, Leanne &rft.creator=De Deckker, Patrick &rft.creator=Pichon, Jean-Jacques &rft.date=2007&rft.coverage=westlimit=146.5; southlimit=-48.00; eastlimit=147; northlimit=-47.50&rft.coverage=westlimit=146.5; southlimit=-48.00; eastlimit=147; northlimit=-47.50&rft.coverage=uplimit=2266.7; downlimit=2260&rft.coverage=uplimit=2266.7; downlimit=2260&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=Creative Commons Attribution 2.5 Australia License http://creativecommons.org/licenses/by/2.5/au&rft_subject=biota&rft_subject=Phytolith&rft_subject=core_depth&rft_subject=length&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

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Brief description

Core MD88-779 was taken during the 1988 French APSARA IV cruise in the South East Indian Ocean. The core was situated on the South Tasman Rise (47º50.690S, 146º32.750E) at a depth of 2260m. Although the core recovered was 6.7m long, only the top 2.6m were studied as preliminary investigations had indicated that this section covered the last two glacial cycles.

Analysis of the sediment identified phytoliths in the core material. This is significant as this was the first known report of phytoliths in core material this south of Australia. Phytolith material was observed sporadically down-core at the following levels; 0, 130, 140, 220 and 230 cm (approximately falling within the Holocene, 100-110 ka, and 170 ka respectively). The phytolith casts most readily identifiable were those comprising the grasses, although larger plate-like casts of trees and shrubs were observed.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: The resource illustrates the phytoliths identified, as well as the recovery depth in the core and the length of the specimen.

Parameters: Scale bar and length of specimens(micro-meters), phytolith collection depth in core (cm).

Notes

Credit
Mountain Mass Spectrometry Laboratory (Colorado)
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
This is the first known report of phytoliths in core material this south of Australia.

Issued: 29 08 2007

Data time period: 1988 to 1988

This dataset is part of a larger collection

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147,-47.5 147,-48 146.5,-48 146.5,-47.5 147,-47.5

146.75,-47.75

text: westlimit=146.5; southlimit=-48.00; eastlimit=147; northlimit=-47.50

text: uplimit=2266.7; downlimit=2260

Subjects
Phytolith | biota | core_depth | length |

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Other Information
(Phytoliths.doc)

uri : https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/ed00c7e0-5aa4-11dc-bd3f-00188b4c0af8/attachments/Phytoliths.doc

Identifiers
  • global : ed00c7e0-5aa4-11dc-bd3f-00188b4c0af8
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