Data

Age vs. Depth of core BAR 9403 (located off the coast of Sumatra). Age has been calculated through modelling based on oxygen isotope records

Australian Ocean Data Network
Spooner, Michelle ; De Deckker, Patrick
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://catalogue.aodn.org.au:443/geonetwork/srv/api/records/80926820-04e6-11dc-b5d9-00188b4c0af8&rft.title=Age vs. Depth of core BAR 9403 (located off the coast of Sumatra). Age has been calculated through modelling based on oxygen isotope records&rft.identifier=https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/80926820-04e6-11dc-b5d9-00188b4c0af8&rft.description=The age with depth of core BAR9403 is calculated through 18O values, which are then correlated with the SPECMAP age-model. Based upon these measurements the age at the deepest part of the core (275cm) was calculated to be ~33,200yrs BP. The age vs. depth profile indicates a reasonably constant sedimentation rate, with an average deposition rate of ~8cm/1000yrs.Maintenance and Update Frequency: notPlannedStatement: The age scale is based entirely on the record of 18O throughout the core. The analytical error in calculating 18O is ±0.08 per mil. Values were calculated every 5cm, and by comparing the 18O value to the SPECMAP age model this dataset provides approximate ages every 5cm into the core. Parameters: Core depth (cm), age (yrs BP).Statement: Sample collected using a piston core. The chronology of the core was deduced from oxygen isotope stratigraphy of Globigerinoides ruber. Carbonate tests were collected using 63µm mesh after preparation. Estimates of 18O at various depths were made by the Finnigan MAT 251 Mass Spectrometer at the Research School of Earth Sciences, The Australian National University. The 18O data was correlated against the SPECMAP age model of Martinson et al. (1987).&rft.creator=Spooner, Michelle &rft.creator=De Deckker, Patrick &rft.date=2007&rft.coverage=104.01188,-5.79905 104.06901,-5.79973 104.06143,-5.84695 104.01118,-5.84697 104.01188,-5.79905&rft.coverage=westlimit=104; southlimit=-6; eastlimit=104.5; northlimit=-5.5&rft.coverage=westlimit=104; southlimit=-6; eastlimit=104.5; northlimit=-5.5&rft.coverage=uplimit=2034; downlimit=2034&rft.coverage=uplimit=2034; downlimit=2034&rft_rights=Creative Commons Attribution 2.5 Australia License http://creativecommons.org/licenses/by/2.5/au/&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_subject=environment&rft_subject=SEDIMENTATION&rft_subject=EARTH SCIENCE&rft_subject=OCEANS&rft_subject=MARINE SEDIMENTS&rft_subject=Age vs. Depth&rft_subject=core_depth&rft_subject=age_of_core&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).

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Brief description

The age with depth of core BAR9403 is calculated through 18O values, which are then correlated with the SPECMAP age-model. Based upon these measurements the age at the deepest part of the core (275cm) was calculated to be ~33,200yrs BP. The age vs. depth profile indicates a reasonably constant sedimentation rate, with an average deposition rate of ~8cm/1000yrs.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: The age scale is based entirely on the record of 18O throughout the core. The analytical error in calculating 18O is ±0.08 per mil. Values were calculated every 5cm, and by comparing the 18O value to the SPECMAP age model this dataset provides approximate ages every 5cm into the core. Parameters: Core depth (cm), age (yrs BP).
Statement: Sample collected using a piston core. The chronology of the core was deduced from oxygen isotope stratigraphy of Globigerinoides ruber. Carbonate tests were collected using 63µm mesh after preparation. Estimates of 18O at various depths were made by the Finnigan MAT 251 Mass Spectrometer at the Research School of Earth Sciences, The Australian National University. The 18O data was correlated against the SPECMAP age model of Martinson et al. (1987).

Notes

Credit
The Australian National University (ANU)
Credit
Funded by The National Oceans Office (NOO)
Credit
Funded by The Australian Research Council (ARC)
Credit
Funded by The Australian Institute of Nuclear Science Engineering (AINSE)
Credit
Funded by The French Polar Institute
Credit
Funded by The Murray Darling Basin Commission
Purpose
To provide insight into general palaeoceanographic conditions in the north-eastern Indian Ocean that may link to patterns to be found within core MD002361 (in the region of the Leeuwin current). The age vs. depth profile can be used to indicate sedimentation rate.

Issued: 21 03 2007

Data time period: 1994 to 1994

This dataset is part of a larger collection

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104.01188,-5.79905 104.06901,-5.79973 104.06143,-5.84695 104.01118,-5.84697 104.01188,-5.79905

104.040095,-5.82301

104.5,-5.5 104.5,-6 104,-6 104,-5.5 104.5,-5.5

104.25,-5.75

text: westlimit=104; southlimit=-6; eastlimit=104.5; northlimit=-5.5

text: uplimit=2034; downlimit=2034

Subjects
Age vs. Depth | EARTH SCIENCE | MARINE SEDIMENTS | OCEANS | Sedimentation | age_of_core | core_depth | environment |

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Other Information
(ANU_Spooner_BAR9403_2_data.xls)

uri : https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/80926820-04e6-11dc-b5d9-00188b4c0af8/attachments/ANU_Spooner_BAR9403_2_data.xls

global : 63899a20-07f0-11dc-92a7-00188b4c0af8

Identifiers
  • global : 80926820-04e6-11dc-b5d9-00188b4c0af8