Late Quaternary environmental and climate history of Rauer Group, East Antarctica:
The Rauer Group is an archipelago in Prydz Bay, East Antarctica. The ice-free islands and the surrounding shallow marine areas provide valuable archives for the reconstruction of the late Pleistocene and Holocene environmental and climatic history of the region. Two sediment records from two marine...
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fttno:oai:tudelft.nl:uuid:0e91b913-7ed9-4073-972d-f06c495c8a73 2023-05-15T13:40:58+02:00 Late Quaternary environmental and climate history of Rauer Group, East Antarctica: Berg, S. Wagner, B. Cremer, H. Leng, M.J. Melles, M. 2010-01-01 http://resolver.tudelft.nl/uuid:0e91b913-7ed9-4073-972d-f06c495c8a73 en eng uuid:0e91b913-7ed9-4073-972d-f06c495c8a73 409798 http://resolver.tudelft.nl/uuid:0e91b913-7ed9-4073-972d-f06c495c8a73 Palaeogeography, Palaeoclimatology, Palaeoecology, 1, 297, 201-213 Geosciences East Antarctica Holocene Marine sediments Rauer Group ice sheet marine sediment paleoclimate paleoenvironment Pleistocene sea ice shallow water Antarctica Prydz Bay Rauer Islands Earth & Environment GM - Geomodelling EELS - Earth Environmental and Life Sciences article 2010 fttno 2022-04-10T15:57:54Z The Rauer Group is an archipelago in Prydz Bay, East Antarctica. The ice-free islands and the surrounding shallow marine areas provide valuable archives for the reconstruction of the late Pleistocene and Holocene environmental and climatic history of the region. Two sediment records from two marine inlets of Rauer Group have been studied for their sedimentological, geochemical, and biological characteristics. Radiocarbon ages from one of the inlets indicate ice-free conditions within the last glacial cycle, probably during the second half of Marine Isotope Stage 3. Subsequent ice sheet coverage of Rauer Group during the Last Glacial Maxiumum (LGM) can be inferred from a till layer recovered in one of the basins. The inlets became ice-free prior to 11,200. cal yr BP, when biogenic sedimentation started. Deglacial processes in the catchments, however, influenced the inlets until ~. 9200. cal yr BP as evidenced by the input of minerogenic material. Marine productivity under relatively open water conditions indicates an early Holocene climate optimum until 8200. cal yr BP, which is followed by a cooler period with increased sea ice. Warmer conditions are inferred for the mid Holocene, when both basins experienced an input of freshwater between ~. 5700-3500. cal yr BP, probably due to ice-sheet melting and increased precipitation on the islands. Neoglacial cooling in the late Holocene since c. 3500. cal yr BP is reflected by an increase in sea ice in both inlets. © 2010 Elsevier B.V. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Ice Sheet Prydz Bay Rauer Islands Sea ice TU Delft: Institutional Repository (Delft University of Technology) East Antarctica Prydz Bay Rauer Group ENVELOPE(77.833,77.833,-68.850,-68.850) Rauer Islands ENVELOPE(77.833,77.833,-68.850,-68.850) |
institution |
Open Polar |
collection |
TU Delft: Institutional Repository (Delft University of Technology) |
op_collection_id |
fttno |
language |
English |
topic |
Geosciences East Antarctica Holocene Marine sediments Rauer Group ice sheet marine sediment paleoclimate paleoenvironment Pleistocene sea ice shallow water Antarctica Prydz Bay Rauer Islands Earth & Environment GM - Geomodelling EELS - Earth Environmental and Life Sciences |
spellingShingle |
Geosciences East Antarctica Holocene Marine sediments Rauer Group ice sheet marine sediment paleoclimate paleoenvironment Pleistocene sea ice shallow water Antarctica Prydz Bay Rauer Islands Earth & Environment GM - Geomodelling EELS - Earth Environmental and Life Sciences Berg, S. Wagner, B. Cremer, H. Leng, M.J. Melles, M. Late Quaternary environmental and climate history of Rauer Group, East Antarctica: |
topic_facet |
Geosciences East Antarctica Holocene Marine sediments Rauer Group ice sheet marine sediment paleoclimate paleoenvironment Pleistocene sea ice shallow water Antarctica Prydz Bay Rauer Islands Earth & Environment GM - Geomodelling EELS - Earth Environmental and Life Sciences |
description |
The Rauer Group is an archipelago in Prydz Bay, East Antarctica. The ice-free islands and the surrounding shallow marine areas provide valuable archives for the reconstruction of the late Pleistocene and Holocene environmental and climatic history of the region. Two sediment records from two marine inlets of Rauer Group have been studied for their sedimentological, geochemical, and biological characteristics. Radiocarbon ages from one of the inlets indicate ice-free conditions within the last glacial cycle, probably during the second half of Marine Isotope Stage 3. Subsequent ice sheet coverage of Rauer Group during the Last Glacial Maxiumum (LGM) can be inferred from a till layer recovered in one of the basins. The inlets became ice-free prior to 11,200. cal yr BP, when biogenic sedimentation started. Deglacial processes in the catchments, however, influenced the inlets until ~. 9200. cal yr BP as evidenced by the input of minerogenic material. Marine productivity under relatively open water conditions indicates an early Holocene climate optimum until 8200. cal yr BP, which is followed by a cooler period with increased sea ice. Warmer conditions are inferred for the mid Holocene, when both basins experienced an input of freshwater between ~. 5700-3500. cal yr BP, probably due to ice-sheet melting and increased precipitation on the islands. Neoglacial cooling in the late Holocene since c. 3500. cal yr BP is reflected by an increase in sea ice in both inlets. © 2010 Elsevier B.V. |
format |
Article in Journal/Newspaper |
author |
Berg, S. Wagner, B. Cremer, H. Leng, M.J. Melles, M. |
author_facet |
Berg, S. Wagner, B. Cremer, H. Leng, M.J. Melles, M. |
author_sort |
Berg, S. |
title |
Late Quaternary environmental and climate history of Rauer Group, East Antarctica: |
title_short |
Late Quaternary environmental and climate history of Rauer Group, East Antarctica: |
title_full |
Late Quaternary environmental and climate history of Rauer Group, East Antarctica: |
title_fullStr |
Late Quaternary environmental and climate history of Rauer Group, East Antarctica: |
title_full_unstemmed |
Late Quaternary environmental and climate history of Rauer Group, East Antarctica: |
title_sort |
late quaternary environmental and climate history of rauer group, east antarctica: |
publishDate |
2010 |
url |
http://resolver.tudelft.nl/uuid:0e91b913-7ed9-4073-972d-f06c495c8a73 |
long_lat |
ENVELOPE(77.833,77.833,-68.850,-68.850) ENVELOPE(77.833,77.833,-68.850,-68.850) |
geographic |
East Antarctica Prydz Bay Rauer Group Rauer Islands |
geographic_facet |
East Antarctica Prydz Bay Rauer Group Rauer Islands |
genre |
Antarc* Antarctica East Antarctica Ice Sheet Prydz Bay Rauer Islands Sea ice |
genre_facet |
Antarc* Antarctica East Antarctica Ice Sheet Prydz Bay Rauer Islands Sea ice |
op_source |
Palaeogeography, Palaeoclimatology, Palaeoecology, 1, 297, 201-213 |
op_relation |
uuid:0e91b913-7ed9-4073-972d-f06c495c8a73 409798 http://resolver.tudelft.nl/uuid:0e91b913-7ed9-4073-972d-f06c495c8a73 |
_version_ |
1766143884600016896 |