Diatom recovery from core MD88-787: Raw counts
Core MD88-787 was recovered during the French ASPARA IV cruise in 1988, aboard the Marion Dufresne. The core was located on the Tasman Fracture Zone of the Mid-Ocean Ridge, within the Polar Front Zone. \n\nA total of 69 diatom species and taxa were recorded in core MD88-787. Over time, the core indi...
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Online Access: | https://researchdata.edu.au/diatom-recovery-core-raw-counts/1935366 http://data.gov.au/dataset/9a04d643-b001-467f-bce2-b263cce0d8cd |
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ftands:oai:ands.org.au::1935366 2023-09-05T13:23:05+02:00 Diatom recovery from core MD88-787: Raw counts Department of Biological Sciences, Macquarie University (isOwnedBy) Spatial: 145.0,-56.5 145.5,-56.5 145.5,-56.0 145.0,-56.0 145.0,-56.5 Spatial: true https://researchdata.edu.au/diatom-recovery-core-raw-counts/1935366 http://data.gov.au/dataset/9a04d643-b001-467f-bce2-b263cce0d8cd unknown data.gov.au https://researchdata.edu.au/diatom-recovery-core-raw-counts/1935366 http://data.gov.au/dataset/9a04d643-b001-467f-bce2-b263cce0d8cd diatom-recovery-from-core-md88-787-raw-counts Department of Biological Sciences, Macquarie University 53001900 53120000 Biosphere Diatoms Fragilariopsis kerguelensis Fragilariopsis separanda Microbiota Thalassiosira lentiginosa dataset ftands 2023-08-14T23:01:31Z Core MD88-787 was recovered during the French ASPARA IV cruise in 1988, aboard the Marion Dufresne. The core was located on the Tasman Fracture Zone of the Mid-Ocean Ridge, within the Polar Front Zone. \n\nA total of 69 diatom species and taxa were recorded in core MD88-787. Over time, the core indicates a reduction in the number of diatom valves in the sediments for the last glacial. This trend is not observed during the previous 'glacial' period in isotope-stage 4, but is again noted in isotope-stage 6. Interglacial isotope-stages 3 and 5 indicate higher- or equivalent-diatom content comparable to isotope-stage 1. The reduced diatom signal during the glacials appears odd since the expectation was for an enhanced diatom signal produced by the northward shifting fronts. The decrease in signal could be interpreted as being affected by sea-ice cover and the resulting change towards more lightly silicified diatom species. App 1-1.pdf - App 6-6 787.pdf - aodn:bluenet_datasets_southern_indian_ocean - Core Data – Southern and Indian Ocean http://gcmd.nasa.gov/Resources/valids/keyword_list.html - http://www.marine.csiro.au/csquares/index.html - Dataset Sea ice Research Data Australia (Australian National Data Service - ANDS) Indian Tasman Fracture Zone ENVELOPE(151.000,151.000,-58.500,-58.500) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
53001900 53120000 Biosphere Diatoms Fragilariopsis kerguelensis Fragilariopsis separanda Microbiota Thalassiosira lentiginosa |
spellingShingle |
53001900 53120000 Biosphere Diatoms Fragilariopsis kerguelensis Fragilariopsis separanda Microbiota Thalassiosira lentiginosa Diatom recovery from core MD88-787: Raw counts |
topic_facet |
53001900 53120000 Biosphere Diatoms Fragilariopsis kerguelensis Fragilariopsis separanda Microbiota Thalassiosira lentiginosa |
description |
Core MD88-787 was recovered during the French ASPARA IV cruise in 1988, aboard the Marion Dufresne. The core was located on the Tasman Fracture Zone of the Mid-Ocean Ridge, within the Polar Front Zone. \n\nA total of 69 diatom species and taxa were recorded in core MD88-787. Over time, the core indicates a reduction in the number of diatom valves in the sediments for the last glacial. This trend is not observed during the previous 'glacial' period in isotope-stage 4, but is again noted in isotope-stage 6. Interglacial isotope-stages 3 and 5 indicate higher- or equivalent-diatom content comparable to isotope-stage 1. The reduced diatom signal during the glacials appears odd since the expectation was for an enhanced diatom signal produced by the northward shifting fronts. The decrease in signal could be interpreted as being affected by sea-ice cover and the resulting change towards more lightly silicified diatom species. App 1-1.pdf - App 6-6 787.pdf - aodn:bluenet_datasets_southern_indian_ocean - Core Data – Southern and Indian Ocean http://gcmd.nasa.gov/Resources/valids/keyword_list.html - http://www.marine.csiro.au/csquares/index.html - |
author2 |
Department of Biological Sciences, Macquarie University (isOwnedBy) |
format |
Dataset |
title |
Diatom recovery from core MD88-787: Raw counts |
title_short |
Diatom recovery from core MD88-787: Raw counts |
title_full |
Diatom recovery from core MD88-787: Raw counts |
title_fullStr |
Diatom recovery from core MD88-787: Raw counts |
title_full_unstemmed |
Diatom recovery from core MD88-787: Raw counts |
title_sort |
diatom recovery from core md88-787: raw counts |
publisher |
data.gov.au |
url |
https://researchdata.edu.au/diatom-recovery-core-raw-counts/1935366 http://data.gov.au/dataset/9a04d643-b001-467f-bce2-b263cce0d8cd |
op_coverage |
Spatial: 145.0,-56.5 145.5,-56.5 145.5,-56.0 145.0,-56.0 145.0,-56.5 Spatial: true |
long_lat |
ENVELOPE(151.000,151.000,-58.500,-58.500) |
geographic |
Indian Tasman Fracture Zone |
geographic_facet |
Indian Tasman Fracture Zone |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Department of Biological Sciences, Macquarie University |
op_relation |
https://researchdata.edu.au/diatom-recovery-core-raw-counts/1935366 http://data.gov.au/dataset/9a04d643-b001-467f-bce2-b263cce0d8cd diatom-recovery-from-core-md88-787-raw-counts |
_version_ |
1776203659622744064 |