Search for dissertations about: "varved"
Showing result 1 - 5 of 18 swedish dissertations containing the word varved.
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1. Varved lake sediments and diagenetic processes
Abstract : Varved (annually laminated) sediments are of great interest for inference of past environmental conditions, as they provide dated records with high time resolution. After deposition, the sediment varves are affected by diagenesis; i.e., chemical, physical and biological changes that occur within the sediment. READ MORE
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2. The Swedish varved clays revisited : spectral- and image analysis of different types of varve series from the Baltic basin
Abstract : .... READ MORE
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3. Combining limnology and paleolimnology : a refined understanding of environmental sediment signal formation in a varved lake
Abstract : Paleoclimatic archives, such as lake sediments, extend our understanding of terrestrial and aquatic ecosystem dynamics in relation to climate variability beyond the period covered by instrumental data. In this context, annually laminated (i.e. READ MORE
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4. 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
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5. The natural holocene vegetation development and the introduction of agriculture in northern Norrland, Sweden : studies of soil, peat and especially varved lake sediments
Abstract : The Holocene vegetation history of northern Norrland was studied by pollen analysis of sediement, peat and soil samples, with the aim to improve our knowledge about vegetation development in northern Norrland, and also about the history of man and the introduction of agriculture in the area. Earlier made pollen analyses from the four northernmost provinces were summarized and a series of new analyses from northern Norrland added. READ MORE