Search for dissertations about: "tephrochronology"
Showing result 1 - 5 of 10 swedish dissertations containing the word tephrochronology.
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1. Ashes to ashes : Applications of tephrochronology in Scandinavia
Abstract : The project presented in this thesis provides two examples of applications of tephrochronology in Scandinavia. The usage of tephra deposits preserved in sediments—i.e. READ MORE
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2. Tephra horizons in the North Atlantic region during the Early Holocene
Abstract : Uncertainties about the rate and magnitude of future climate change have drawn attention to the climate variability following the Late Glacial-Early Holocene transition, c. 12-8 ka BP. READ MORE
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3. Tree-limit ecotonal response to Holocene climate change in the Scandes Mountains of west-central Sweden
Abstract : The aim of this thesis was to reconstruct the Holocene vegetational and climatic development in the Sylarna-Storulvån area, western Jämtland, in the central Scandes Mountains. Temporal trends and fluctuations in the elevation and vegetational character of the tree-limit ecotone were studied mainly by means of pollen and plant macrofossil analysis of two lake sediment sequences (Lakes Stentjärn and Spåime), located above the present-day tree-limit. READ MORE
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4. Geology of Lagoa das Furnas, a crater lake on São Miguel, Azores archipelago
Abstract : In this thesis, the results from a geophysical mapping and coring campaign of Lagoa das Furnas are presented. Specific focus is placed on the origin of a subaqueous volcanic cone mapped in the southern part of the lake. READ MORE
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5. Setting the Holocene clock using varved lake sediments in Sweden
Abstract : The aim of this thesis was to study annually laminated (varved) Holocene lake sediment in Sweden, their formation and their potential as chronological and palaeoecological archives. Five lakes with continuous Holocene varved lake sediment sequences in northern (Västerbotten) and west central Sweden (Värmland) were investigated. READ MORE
