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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Spelling suggestions: "subject:"lakselus"" "subject:"lakser""

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Towards a Tephrochronology for the Lakselv Peat Sequence in Finnmark County, Northern Norway / Mot en Tefrokronologi för Torvsekvensen i Lakselv i Finnmark Län, Norra Norge

Höglund, Anny January 2017 (has links)
To provide an increased breadth in the knowledge of tephra dispersal, this pilot study examines a peat core from Lakselv in Finnmark County in northern Norway. Peat samples are exposed to burning, HCl, density separation and polarized light microscopy. One sample from a depth of 37.5-40 cm was analysed using an electron microprobe analyser (EMPA). At least two tephra horizons were identified, one at a depth of 12.5-17.5 cm and one at 37.5-40 cm. The lower horizon shows a chemical composition similar to eruptives from Jan Mayen and São Miguel, Azores while the origin of the upper horizon is unknown as no geochemical analysis was performed for that depth.
Tephra
Tephrochronology
Lakselv
Norway
Jan Mayen
São Miguel
Electron Microprobe Analysis
Density Separation
Annan geovetenskap och miljövetenskap
Physical Geography
Naturgeografi

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