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Post-Depositional Shape Modification in Red Sea Coccoliths

Amos Winter
Micropaleontology
Vol. 28, No. 3 (1982), pp. 319-323
DOI: 10.2307/1485184
Stable URL: http://www.jstor.org/stable/1485184
Page Count: 5
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Post-Depositional Shape Modification in Red Sea Coccoliths
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Abstract

Post-depositional shape modification by calcite overgrowth in Emiliania huxleyi and Umbellosphaera irregularis is demonstrated in Late Quaternary sediments from the Red Sea and the Gulf of Aqaba. Overgrowth may produce forms which resemble discoasters, thus raising taxonomic problems. Waters of the Red Sea and the Gulf of Aqaba, supersaturated with CaCO3, are probably the cause of this modification.

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