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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03821nam a2200433 4500 | |
| 001 | oai:DiVA.org:su-75026 | |
| 003 | SwePub | |
| 008 | 120403s2012 | |||||||||||000 ||eng| | |
| 020 | a 9789174474725q print | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-750262 URI |
| 040 | a (SwePub)su | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a vet2 swepub-contenttype |
| 072 | 7 | a dok2 swepub-publicationtype |
| 100 | 1 | a Kaislahti Tillman, Päivi,d 1958-u Stockholms universitet,Institutionen för naturgeografi och kvartärgeologi (INK)4 aut0 (Swepub:su)pka1700 |
| 245 | 1 0 | a Holocene climate and environmental change in high latitudes as recorded by stable isotopes in peat deposits |
| 264 | 1 | a Stockholm :b Department of Physical Geography and Quaternary Geology, Stockholm University,c 2012 |
| 300 | a 36 s. | |
| 338 | a print2 rdacarrier | |
| 490 | 0 | a Dissertations from the Department of Physical Geography and Quaternary Geology,x 1653-7211 ;v 32 |
| 500 | a At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 3: Submitted. Paper 4: Manuscript. | |
| 520 | a In this thesis, stable carbon and oxygen isotopes in α-cellulose isolated from Sphagnum fuscum moss remains were used as climate proxies. The main focus was to implement the methods in records from high latitude peatlands in the Northern Hemisphere (west-central Canada and north-eastern European Russia), reconstruct palaeoclimate of the studied regions during the Holocene, and evaluate the compatibility of results with other proxy records, especially tree-ring isotope time-series. The variation of stable carbon and oxygen isotope ratios (δ13C, δ18O) in different moss plant components was investigated and differences between untreated plants and α-cellulose extracts were evaluated. The impact of peat decay on the stable isotope proxies was studied by colorimetric and chemical (C/N) methods. Temperature reconstructions were developed based on the statistically significant relationship between δ13C and modern summer temperature records. Wet/dry periods were derived from a combination of δ18O records, macrofossil analysis, and a peat humification record in west-central Canada. A tentative reconstruction of snow depth in north-eastern European Russian tundra and northern taiga was based on δ18O records. The most promising result of the thesis is that stable carbon isotope variability in α-cellulose isolated from Sphagnum fuscum stems can be used to reconstruct and quantify palaeotemperatures several millennia back in time and to reveal both long-term and rapid climate shifts from peat archives. | |
| 650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskap0 (SwePub)1052 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciences0 (SwePub)1052 hsv//eng |
| 653 | a stable isotopes | |
| 653 | a Holocene | |
| 653 | a subarctic | |
| 653 | a climate | |
| 653 | a Sphagnum fuscum | |
| 653 | a kvartärgeologi | |
| 653 | a Quarternary Geology | |
| 700 | 1 | a Holzkämper, Steffen,c Dru Stockholms universitet,Institutionen för naturgeografi och kvartärgeologi (INK)4 ths |
| 700 | 1 | a Wastegård, Stefan,c Professoru Stockholms universitet,Institutionen för naturgeografi och kvartärgeologi (INK)4 ths |
| 700 | 1 | a Kuhry, Peter,c Professoru Stockholms universitet,Institutionen för naturgeografi och kvartärgeologi (INK)4 ths |
| 700 | 1 | a Edwards, Thomas W. D.u University of Waterloo, Earth and Environmental Sciences4 opn |
| 710 | 2 | a Stockholms universitetb Institutionen för naturgeografi och kvartärgeologi (INK)4 org |
| 856 | 4 | u https://su.diva-portal.org/smash/get/diva2:513725/ERRATA01.pdfy errata |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-75026 |
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