A comparison between multi-proxy and historical data of drift-ice conditions on the East Greenland shelf ...
The reduction in sea ice along the SE Greenland coast during the last century has severely impacted ice-rafting to this area. In order to reconstruct ice-rafting and oceanographic conditions in the area of Denmark Strait during the last ~150 years, we conducted a multiproxy study on three short (20...
| Main Authors: | , , , , , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
PANGAEA
2013
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.831441 https://doi.pangaea.de/10.1594/PANGAEA.831441 |
| Summary: | The reduction in sea ice along the SE Greenland coast during the last century has severely impacted ice-rafting to this area. In order to reconstruct ice-rafting and oceanographic conditions in the area of Denmark Strait during the last ~150 years, we conducted a multiproxy study on three short (20 cm) sediment cores from outer Kangerdlugssuaq Trough (~300 m water depth). The proxy-based data obtained have been compared with historical and instrumental data to gain a better understanding of the ice sheet-ocean interactions in the area. A robust chronology has been developed based on 210Pb and 137Cs measurements on core PO175GKC#9 (~66.2°N, 32°W) and expanded to the two adjacent cores based on correlations between calcite weight percent records. Our proxy records include sea-ice and phytoplankton biomarkers, and a variety of mineralogical determinations based on the <2 mm sediment fraction, including identification with quantitative x-ray diffraction, ice-rafted debris counts on the 63-150 µm sand ... : Supplement to: Alonso-Garcia, Montserrat; Andrews, John T; Belt, Simon T; Cabedo-Sanz, Patricia; Darby, Dennis A; Jaeger, John (2013): A comparison between multiproxy and historical data (AD 1990-1840) of drift ice conditions on the East Greenland Shelf ( 66 N). The Holocene, 23(12), 1672-1683 ... |
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