Scourse, J. D., Kennedy, H., Scott, G. and Austin, W. E N. (2004). Stable isotopic analyses of modern benthic foraminifera from seasonally stratified shelf seas:. Holocene 14 (5). Vol 14(5), pp. 747-758.
 Title The title of the publication or report |
Stable isotopic analyses of modern benthic foraminifera from seasonally stratified shelf seas: | ||
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Subtitle The sub title of the publication or report |
disequilibria and the `seasonal effect' | ||
Issue The name of the volume or issue |
Holocene 14 (5) | ||
Series The series the publication or report is included in |
The Holocene | ||
Volume Volume number and part |
14 (5) | ||
Page Start/End The start and end page numbers. |
747 - 758 | ||
Biblio Note This is a Bibliographic record only. |
The ADS have no files for download on this page but further information is available online, normally as an electronic version maintained by the Publisher, or held in a larger collection such as an ADS Archive. Please refer to the DOI or URI listed in the Relations section of this record to locate the information you require. In the case of non-ADS resources, please be aware that we cannot advise further on availability. | ||
Publication Type The type of publication - report, monograph, journal article or chapter from a book |
Journal | ||
Abstract The abstract describing the content of the publication or report |
Study aimed at testing the hypotheses that benthic foraminiferal stable isotope records from across the Celtic Sea front reflect seasonal stratification, and that offsets in the oxygen isotope record between different species are the result of the postulated seasonal effect. The first hypothesis was tested through investigation of live and dead benthic foraminiferal and bottom-water 18O and 13C sampled in transects across the Celtic Sea front from mixed through frontal to stratified water masses. Measurements of bottom-water salinity enabled a mixing-line equation to be developed for this area enabling quantitative reconstructions of bottom-water temperature from the isotopic data. Samples from stratified settings are characterized by heavier 18Oforam and lighter 13Cforam values than the mixed samples. Offsets in 18Oforam between Ammonia batavus and Quinqueloculina seminum support the notion of the seasonal effect. A. batavus produces values close to equilibrium while Q. seminulum overestimates temperature by up to 2°C and this might explain some of the offset observed between the two species observed in the palaeodata. Comparison of the 18Oforam data with measured seasonal temperature cycles from mixed and stratified localities in the Celtic Sea demonstrates that, while most foraminifera calcify during the summer months, different species calcify at, or are preserved from, different times within this warm part of the seasonal cycle; Q. seminulum calcifies during September when peak bottom-water temperatures occur, while A. batavus calcifies during September in stratified localities, but during spring or early summer in mixed localities. This study confirms the interpretation of the 18O palaeodata from the Celtic Sea as a palaeostratification record and demonstrates that 18O data from shelf-sea cores can be used to supplement benthic foraminiferal assemblages as a tool for reconstructing the long-term dynamics of seasonal stratification. | ||
Year of Publication The year the book, article or report was published |
2004 | ||
Source Where the record has come from or which dataset it was orginally included in. |
BIAB
(The British & Irish Archaeological Bibliography (BIAB))
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Relations Other resources which are relevant to this publication or report |
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Created Date The date the record of the pubication was first entered |
01 May 2007 |
