Planktonic foraminifera and microfossil composition of IODP Hole 302-M0004C
Citation
Eynaud F (2011). Planktonic foraminifera and microfossil composition of IODP Hole 302-M0004C. PANGAEA - Data Publisher for Earth & Environmental Science. Occurrence dataset https://doi.org/10.1594/pangaea.788078 accessed via GBIF.org on 2024-11-03.Description
Calcareous microfossils are widely used by paleoceanographers to investigate past sea-surface hydrology. Among these microfossils, planktonic foraminifera are probably the most extensively used tool (e.g. [1] for a review), as they are easy to extract from the sediment and can also be used for coupled geochemical (e.g; d18O, d13C, Mg/Ca) and paleo-ecological investigations. Planktonic foraminifera are marine protists, which build a calcareous shell made of several chambers which reflect in their chemistry the properties of the ambient water-masses. Planktonic foraminifera are known to thrive in various habitats, distributed not only along a latitudinal gradient, but also along different water-depth intervals within surface waters (0-1000 m). Regarding their biogeographical distribution, planktonic foraminifera assemblages therefore mirror different water-masses properties, such as temperature, salinity and nutrient content of the surface water in which they live. The investigation of the specific composition of a fossil assemblage (relative abundances) is therefore a way to empirically obtain (paleo)information on past variations of sea-surface hydrological parameters. This paper focuses on the planktonic foraminifera record from the Arctic domain. This polar region records peculiar sea-surface conditions, with the influence of nearly perennial sea-ice cover development. This has strong impact on living foraminifera populations and on the preservation of their shells in the underlying sediments.Taxonomic Coverages
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Chromistarank: kingdom
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Foraminiferarank: kingdom
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Animaliarank: kingdom
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Molluscarank: kingdom
Geographic Coverages
Event: 302-M0004C,
Arctic Ocean
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Bibliographic Citations
Contacts
Frédérique Eynaudoriginator
metadata author
PANGAEA - Data Publisher for Earth & Environmental Science
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Frank-Oliver Glöckner
administrative point of contact
Robert Huber
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