Carbon isotope (13-C) values for 5 different foraminiferal species down the core of GC12, collected from the Capricorn Channel
Maintenance and Update Frequency: notPlanned Statement: Samples for foraminifera picking were dried in the oven at 60oC before being re-soaked in distilled water. Samples were then wet sieved through a series of four mesh sizes before the size fractions were transferred to drying trays. After drying...
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ftands:oai:ands.org.au::680214 2023-10-25T01:43:05+02:00 Carbon isotope (13-C) values for 5 different foraminiferal species down the core of GC12, collected from the Capricorn Channel Bostock, Helen (hasPrincipalInvestigator) Bostock, Helen, Dr (hasPrincipalInvestigator) Department of Earth and Marine Sciences (DEMS), The Australian National University (ANU) (hasAssociationWith) National Institute of Water and Atmosphere (NIWA) (hasAssociationWith) Opdyke, Bradley, Dr (collaborator) Spatial: 153.83198,-23.57259 153.83270,-23.57258 153.83264,-23.57319 153.83192,-23.57316 153.83198,-23.57259. Spatial: westlimit=151.5; southlimit=-24.5; eastlimit=153; northlimit=-23 Spatial: uplimit=990.5; downlimit=990.5 Temporal: From 1997 to 1997 https://researchdata.edu.au/carbon-isotope-13-capricorn-channel/680214 unknown Australian Ocean Data Network https://researchdata.edu.au/carbon-isotope-13-capricorn-channel/680214 d009c810-2522-11dc-aba4-00188b4c0af8 National Institute of Water and Atmosphere (NIWA) environment ISOTOPES EARTH SCIENCE PALEOCLIMATE OCEAN/LAKE RECORDS 51200000 Foraminiferida Foraminiferans Foraminifera core_depth age amount_of_carbon-13_isotope_per_taxonomic_species dataset ftands 2023-09-25T22:30:48Z Maintenance and Update Frequency: notPlanned Statement: Samples for foraminifera picking were dried in the oven at 60oC before being re-soaked in distilled water. Samples were then wet sieved through a series of four mesh sizes before the size fractions were transferred to drying trays. After drying foraminifera were picked from under microscope for the large size fractions of >300 µm and >400µm. 10-15 individuals of each species were hand picked for isotope analysis. The samples were washed in methanol and ultrasonicated for 30 secs to remove any surface and internal particles. The samples were analysed at the Research School of Earth Science, Australian National University, using an automated individual carbonate reaction (Kiel) device coupled with a Finnigan MAT-251 mass spectrometer. Statement: 13-C values are normalised to TIC (total inorganic carbon) for 3 of the 5 foraminifera species analysed. The 13-C of the Cibicidoides genus is considered to reflect the 13-C of bottom water with relatively little fractionation relative to equilibrium calcite, while no correction is available for Gr. truncatulinoides. The noramlisation accounts for interspecies variability in fractionating carbon isotopes. The record of G. ruber, G. sacculifer and Gr. menardii is provided consistently every 5-10 cm of the core, down to a depth of 510cm. The results for Gr. menardii and Gr. truncatulinoides are more sporadic due to the absence of these species within some intervals of the core, generally in the top 150cm. From 150cm (~16340 yrs BP) down, results are provided for every 5-10cm. Credit Funded by The Australian Research Council (ARC) Credit Funded by The Australian National University (ANU) Faculties Research Grant Scheme Purpose The analysis of stable isotopes in multiple species of planktonic foraminifera provides an insight into changes in the gradients of physical and biological properties in the water column. Carbon isotopes ratios are used to track changes in biological productivity and have been the ... Dataset Planktonic foraminifera Research Data Australia (Australian National Data Service - ANDS) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
environment ISOTOPES EARTH SCIENCE PALEOCLIMATE OCEAN/LAKE RECORDS 51200000 Foraminiferida Foraminiferans Foraminifera core_depth age amount_of_carbon-13_isotope_per_taxonomic_species |
spellingShingle |
environment ISOTOPES EARTH SCIENCE PALEOCLIMATE OCEAN/LAKE RECORDS 51200000 Foraminiferida Foraminiferans Foraminifera core_depth age amount_of_carbon-13_isotope_per_taxonomic_species Carbon isotope (13-C) values for 5 different foraminiferal species down the core of GC12, collected from the Capricorn Channel |
topic_facet |
environment ISOTOPES EARTH SCIENCE PALEOCLIMATE OCEAN/LAKE RECORDS 51200000 Foraminiferida Foraminiferans Foraminifera core_depth age amount_of_carbon-13_isotope_per_taxonomic_species |
description |
Maintenance and Update Frequency: notPlanned Statement: Samples for foraminifera picking were dried in the oven at 60oC before being re-soaked in distilled water. Samples were then wet sieved through a series of four mesh sizes before the size fractions were transferred to drying trays. After drying foraminifera were picked from under microscope for the large size fractions of >300 µm and >400µm. 10-15 individuals of each species were hand picked for isotope analysis. The samples were washed in methanol and ultrasonicated for 30 secs to remove any surface and internal particles. The samples were analysed at the Research School of Earth Science, Australian National University, using an automated individual carbonate reaction (Kiel) device coupled with a Finnigan MAT-251 mass spectrometer. Statement: 13-C values are normalised to TIC (total inorganic carbon) for 3 of the 5 foraminifera species analysed. The 13-C of the Cibicidoides genus is considered to reflect the 13-C of bottom water with relatively little fractionation relative to equilibrium calcite, while no correction is available for Gr. truncatulinoides. The noramlisation accounts for interspecies variability in fractionating carbon isotopes. The record of G. ruber, G. sacculifer and Gr. menardii is provided consistently every 5-10 cm of the core, down to a depth of 510cm. The results for Gr. menardii and Gr. truncatulinoides are more sporadic due to the absence of these species within some intervals of the core, generally in the top 150cm. From 150cm (~16340 yrs BP) down, results are provided for every 5-10cm. Credit Funded by The Australian Research Council (ARC) Credit Funded by The Australian National University (ANU) Faculties Research Grant Scheme Purpose The analysis of stable isotopes in multiple species of planktonic foraminifera provides an insight into changes in the gradients of physical and biological properties in the water column. Carbon isotopes ratios are used to track changes in biological productivity and have been the ... |
author2 |
Bostock, Helen (hasPrincipalInvestigator) Bostock, Helen, Dr (hasPrincipalInvestigator) Department of Earth and Marine Sciences (DEMS), The Australian National University (ANU) (hasAssociationWith) National Institute of Water and Atmosphere (NIWA) (hasAssociationWith) Opdyke, Bradley, Dr (collaborator) |
format |
Dataset |
title |
Carbon isotope (13-C) values for 5 different foraminiferal species down the core of GC12, collected from the Capricorn Channel |
title_short |
Carbon isotope (13-C) values for 5 different foraminiferal species down the core of GC12, collected from the Capricorn Channel |
title_full |
Carbon isotope (13-C) values for 5 different foraminiferal species down the core of GC12, collected from the Capricorn Channel |
title_fullStr |
Carbon isotope (13-C) values for 5 different foraminiferal species down the core of GC12, collected from the Capricorn Channel |
title_full_unstemmed |
Carbon isotope (13-C) values for 5 different foraminiferal species down the core of GC12, collected from the Capricorn Channel |
title_sort |
carbon isotope (13-c) values for 5 different foraminiferal species down the core of gc12, collected from the capricorn channel |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.edu.au/carbon-isotope-13-capricorn-channel/680214 |
op_coverage |
Spatial: 153.83198,-23.57259 153.83270,-23.57258 153.83264,-23.57319 153.83192,-23.57316 153.83198,-23.57259. Spatial: westlimit=151.5; southlimit=-24.5; eastlimit=153; northlimit=-23 Spatial: uplimit=990.5; downlimit=990.5 Temporal: From 1997 to 1997 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
National Institute of Water and Atmosphere (NIWA) |
op_relation |
https://researchdata.edu.au/carbon-isotope-13-capricorn-channel/680214 d009c810-2522-11dc-aba4-00188b4c0af8 |
_version_ |
1780739858221760512 |