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Diatom records: Antarctic waters

Stickley, Catherine Emma, Pike, Jennifer ORCID: and Jones, V. 2007. Diatom records: Antarctic waters. Elias, Scott A., ed. Encyclopedia of Quaternary Science, Amsterdam: Elsevier, pp. 530-541. (10.1016/B0-44-452747-8/00237-4)

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The nutrient-rich Southern Ocean is the world's richest source of biogenic opal, resulting in a circum-Antarctic ‘siliceous ooze belt’, and there have been numerous studies of Quaternary Antarctic diatoms. The occurrences and applications of Quaternary diatoms from the Southern Ocean and Antarctic freshwater systems are discussed in this chapter, and the applications that have widespread importance for Antarctic paleoceanography and climate studies are summarized. Using the latest information, we focus on diatom biogeography in surface sediments, reconstructing past sea-surface temperatures and sea-ice patterns (including oceanic frontal migrations), bottom water tracers, and biostratigraphy. Holocene records of nonmarine diatoms are found in lakes on the Antarctic continent, such as near the coast and in the McMurdo Dry Valleys, one of the coldest and driest places on earth. They are also found in ancient ice-cores. The uses of fossil diatoms in Antarctic lakes and ice-cores for climate and ecosystem change studies are also summarized.

Item Type: Book Section
Date Type: Publication
Status: Published
Schools: Earth and Environmental Sciences
Subjects: Q Science > QE Geology
Uncontrolled Keywords: Antarctic continent; biogeography; biostratigraphy; bottom water tracers; freshwater diatoms; lakes; marine diatoms; paleoceanography; paleolimnology; salinity changes; sea-ice patterns; sea-surface temperatures; siliceous ooze belt; Southern Ocean; transfer functions
Publisher: Elsevier
ISBN: 9780444527479
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Last Modified: 18 Oct 2022 12:27

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