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The relative abundance (%) of planktonic foraminifera over time in core MD 002361, located on the shelf edge, offshore Western Australia

The advent of deep-sea drilling in the 1950's prompted the use of planktonic foraminifera (unicellular protozans) as palaeoceanographic indicators. They provide a natural archive of past environmental changes due to their global distribution, their prolific productivity and sensitivity to environmental variations. The most abundant species within core MD002361 is the subtropical species Gs. ruber. High abundances =30% are seen during the interglacial periods Marine Isotope Stages (MIS) 11, 9, 7, 5 with peak abundance (37.7%) during the Holocene. Other tropical and subtropical species follow this pattern. The transitional, deep dwelling species Gr. inflata has the most distinct abundance change within core MD002361. This species is absent during the interglacial periods but achieves high relative abundances (~20-30%) during glacial periods.

Data and Resources

Additional Info

Field Value
Title The relative abundance (%) of planktonic foraminifera over time in core MD 002361, located on the shelf edge, offshore Western Australia
Type Dataset
Language English
Licence Creative Commons Attribution 2.5 Australia
Data Status inactive
Update Frequency notPlanned
Landing Page http://data.gov.au/dataset/bb7a2ebf-32d8-4676-9047-c6554be80351
Date Published 2017-06-25
Date Updated 2017-06-25
Contact Point
Australian National University
michelle.spooner8@gmail.com
Geospatial Coverage {"type": "Polygon", "coordinates": [[[113.0, -22.5], [113.5, -22.5], [113.5, -22.0], [113.0, -22.0], [113.0, -22.5]]]}
Jurisdiction Commonwealth of Australia
Data Portal Australian Oceans Data Network CSW Harvester
Publisher/Agency Australian National University
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