Articles | Volume 43, issue 1
https://doi.org/10.5194/jm-43-165-2024
https://doi.org/10.5194/jm-43-165-2024
Research article
 | 
18 Jun 2024
Research article |  | 18 Jun 2024

South Georgia marine productivity over the past 15 ka and implications for glacial evolution

Jack T. R. Wilkin, Sev Kender, Rowan Dejardin, Claire S. Allen, Victoria L. Peck, George E. A. Swann, Erin L. McClymont, James D. Scourse, Kate Littler, and Melanie J. Leng

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Cited articles

Ahn, S., Khider, D., Lisiecki, L. E., and Lawrence, C. E.: A probabilistic Pliocene–Pleistocene stack of benthic δ18O using a profile hidden Markov model, Dynam. Stat. Clim. Syst., 2, dzx002, https://doi.org/10.1093/climsys/dzx002, 2017. 
Allen, C. S., Peck, V. L., Graham, A. G. C., Blagbrough, H., Robinson, M. W., and McClymont, E.: Collecting records of past oceanographic conditions and calibrating new proxies in the Polar Front Zone of the SW Atlantic (Falkland Plateau, Shag Rocks and South Georgia), Cruise Report (JR-257), British Antarctic Survey, https://www.bodc.ac.uk/resources/inventories/cruise_inventory/reports/jr257_254e.pdf (last access: 14 June 2024), 2012. 
Alve, E.: Foraminifera, climatic change, and pollution: a study of late Holocene sediments in Drammensfiord, southeast Norway, The Holocene, 1, 243–262, https://doi.org/10.1177/095968369100100306, 1991. 
Alve, E.: Benthic foraminiferal distribution and recolonization of formerly anoxic environments in Drammensfjord, southern Norway, Mar. Micropaleontol., 25, 169–186, https://doi.org/10.1016/0377-8398(95)00007-N, 1995. 
Anderson, J. B.: Ecology and distribution of foraminifera in the Weddell Sea of Antarctica, Micropalaeontology, 21, 69–96, https://doi.org/10.2307/1485156, 1975. 
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Short summary
The sub-Antarctic island of South Georgia has a dynamic glacial history and is sensitive to climate change. Using benthic foraminifera and various geochemical proxies, we reconstruct inner–middle shelf productivity and infer glacial evolution since the late deglacial, identifying new mid–late-Holocene glacial readvances. Fursenkoina fusiformis acts as a good proxy for productivity.
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