Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Luminescence in fast growing stalagmites from Uppsala, Sweden
Stockholm University, Faculty of Science, Department of Physical Geography and Quaternary Geology.
2005 (English)In: Geografiska Annaler. Series A, Physical Geography, ISSN 0435-3676, E-ISSN 1468-0459, Vol. 87, no 4, 539-548 p.Article in journal (Refereed) Published
Abstract [en]

Two fast-growing stalagmites from a cellar vault in Uppsala, southeast Sweden, are ana-lysed for their luminescent properties. The results

indicate that variations in luminescence intensity in the stalagmites are annual. Due to problems in find-ing a suitable absolute dating method this assump-tion cannot yet be firmly tested; however, results from radiocarbon dating of one of the stalagmites do not contradict the proposal that the laminae are annual. If so, the speleothems have been growing for 10-15 years with a growth rate of 3-8 mm per year, which is a similar rate to other fast-growing speleothems in Great Britain that have formed from the reaction of lime mortar and carbon dioxide. It is likely that the assumed annual laminae of the lumi-nescence record represent a flush of organic mate-rial.

Place, publisher, year, edition, pages
2005. Vol. 87, no 4, 539-548 p.
National Category
Geophysics
Identifiers
URN: urn:nbn:se:su:diva-23068OAI: oai:DiVA.org:su-23068DiVA: diva2:190031
Note

Part of urn:nbn:se:su:diva-1408

Available from: 2007-01-03 Created: 2007-01-03 Last updated: 2017-12-13Bibliographically approved
In thesis
1. Speleothems as environmental recorders: A study of Holocene speleothems and their growth environments in Sweden
Open this publication in new window or tab >>Speleothems as environmental recorders: A study of Holocene speleothems and their growth environments in Sweden
2007 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The main aim of this thesis was to contribute with detailed information of regional environmental change during the Holocene through studies of speleothems and their growth environments from two caves, Korallgrottan and Labyrintgrottan in northwestern Sweden, and a cellar vault in Uppsala. This was done through studies of stable isotopes and luminescence properties in the speleothems in combination with a detailed monitoring study in Korallgrottan.

The monitoring study suggests that stalagmites fed by stalactites with slow and stable drip rates from deep inside the cave may be suitable as palaeoclimate archives. Similarities between oxygen isotope signals of contemporary samples from Labyrintgrottan and Korallgrottan emphasize the potential of speleothems from Labyrintgrottan to also provide high resolution regional palaeoclimate information.

Except for a number of cold events stalagmite δ18O records from northern Scandinavia indicate that temperatures were warmer than today between 9500 and 6000 years ago. During this period the interval between 7800 and 6000 years ago seems to have been the warmest. The area above Labyrintgrottan was most likely covered by much denser vegetation than today at the time of stalagmite growth (9500-7500 years ago) and was, unlike today, probably situated below the local tree-limit between 9000 and 8000 years ago. The δ18O record of a stalagmite from Korallgrottan covering the last 4000 years agrees with the concept of a warmer period, the so called Medieval Warm Period, centred around AD1000 and a colder period, the so called Little Ice Age, somewhere between AD1000 and today.

Studies of luminescence properties in fast growing speleothems from Uppsala indicate that the variations in luminescence intensity are annual and that the annual lamiae of the luminescent record represent a flush of organic material.

Place, publisher, year, edition, pages
Stockholm: Institutionen för naturgeografi och kvartärgeologi, 2007. 69 p.
Series
Dissertations from the Department of Physical Geography and Quaternary Geology, ISSN 1653-7211 ; 3
Keyword
speleothems, palaeoclimate, stable isotopes, luminescence, karst hydrology, Holocene, Sweden, Jämtland
National Category
Physical Geography
Identifiers
urn:nbn:se:su:diva-1408 (URN)91-7155-362-2 (ISBN)
Public defence
2007-01-26, Nordenskiöldsalen, Geovetenskapens hus, Svante Arrhenius väg 8 C, Stockholm, 13:00
Opponent
Supervisors
Available from: 2007-01-03 Created: 2007-01-03Bibliographically approved

Open Access in DiVA

No full text

Other links

pdf

Search in DiVA

By author/editor
Sundqvist, Hanna S.Holmgren, Karin
By organisation
Department of Physical Geography and Quaternary Geology
In the same journal
Geografiska Annaler. Series A, Physical Geography
Geophysics

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 34 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf