Title A new Antarctic foraminiferal species for detecting climate change in sub-Recent glacier-proximal sediments
Author Majewski, W.; Tatur, A.
Author Affil Majewski, W., Polish Academy of Sciences, Institute of Paleobiology, Warsaw, Poland
Source Antarctic Science, 21(5), p.439-448, . Publisher: Cambridge University Press, Cambridge, United Kingdom. ISSN: 0954- 1020
Publication Date Oct. 2009
Notes In English. Includes 2 appendices. 45 refs. Ant. Acc. No: 87223. CRREL Acc. No: 64001389
Index Terms carbon isotopes; climatic change; glaciers; isotopes; oxygen; paleoclimatology; Antarctica--Admiralty Bay; Antarctica--King George Island; Admiralty Bay; Antarctica; benthic taxa; biochemistry; biofacies; C-13/C- 12; carbon; Cenozoic; climate change; Cribroelphidium webbi; Foraminifera; glacial environment; Holocene; holotypes; International Polar Year 2007-08; Invertebrata; IPY 2007-08 Research Publications; isotope ratios; King George Island; microfossils; morphology; new taxa; O- 18/O-16; paratypes; Protista; Quaternary; Scotia Sea Islands; South Shetland Islands; stable isotopes; taxonomy; tidewater glaciers; upper Holocene
Abstract Cribroelphidium webbi sp. nov. is the only adequately described sub-Recent elphidiid foraminifer from Antarctica. In Admiralty Bay (King George Island, South Shetland Islands), it is found at several locations within inner fiord setting at water depths between 33 and 165 m, but most commonly shallower than 100 m. In outer basins this foraminifer is absent. In the cores analysed, C. webbi sp. nov. is present in well-constrained sub-Recent horizons that are clearly related to climate warming and deglaciation. These horizons represent a diachronous facies marker rather than a single stratigraphic layer. Cribroelphidium webbi sp. nov. shows clear association with retreating tidewater glaciers, therefore it is an important sensitive glacier-proximal indicator. It appears that it shares similar ecologic affinities with Cribroelphidium excavatum clavatum, which is widely distributed throughout the Arctic.
URL http://hdl.handle.net/10.1017/S0954102009990150
Publication Type journal article
Record ID 296104