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  4. The variability of sea ice in the Fram Strait throughout glacial-interglacial transitions of the Late Quaternary (MIS 11 to MIS 1)
 
Zitierlink URN
https://nbn-resolving.de/urn:nbn:de:gbv:46-00106689-12

The variability of sea ice in the Fram Strait throughout glacial-interglacial transitions of the Late Quaternary (MIS 11 to MIS 1)

Veröffentlichungsdatum
2018-06-08
Autoren
Kremer, Anne  
Betreuer
Stein, Rüdiger  
Gutachter
Mollenhauer, Gesine  
Zusammenfassung
The objective of this thesis was the reconstruction of sea ice variability in the Fram Strait throughout glacial-interglacial transitions of the Late Quaternary. For this purpose, analyses of molecular biomarkers were carried out on eight sediment cores along the western and northern Svalbard Shelf (PS93/006-1, PS92/039-2), the East Greenland Shelf (PS93/016-6, PS93/031-4) as well as the central Arctic Ocean (PS87/023-1, PS87/030-1, PS87/070-1, PS87/079-1). These records provided valid insights into the Arctic paleoenvironment since Marine Isotope Stage 11. In order to reconstruct past sea ice cover, the sea ice proxy IP25 was applied in combination with the related phytoplankton-IP25 sea ice index PIP25. Further specific biomarkers were used to reflect the sea surface temperatures (glycerol dialkyl glycerol tetraethers), the marine production (brassicasterol, dinosterol, tri-unsaturated highly-branched isoprenoids) and the input of terrigenous material (campesterol, I -sitosterol).
Schlagwörter
Arctic Ocean

; 

Fram Strait

; 

sea ice

; 

ice sheet

; 

Quaternary

; 

glacial-interglacial cycles

; 

biomarkers

; 

IP25

; 

PIP25
Institution
Universität Bremen  
Fachbereich
Fachbereich 05: Geowissenschaften (FB 05)  
Dokumenttyp
Dissertation
Zweitveröffentlichung
Nein
Sprache
Englisch
Dateien
Lade...
Vorschaubild
Name

00106689-1.pdf

Size

35.36 MB

Format

Adobe PDF

Checksum

(MD5):211616ec11a65fef88f626d54845b525

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