Search for dissertations about: "palaeoclimate"

Showing result 1 - 5 of 12 swedish dissertations containing the word palaeoclimate.

2. 1. Speleothems as environmental recorders : A study of Holocene speleothems and their growth environments in Sweden

   Author : Hanna S. Sundqvist; Karin Holmgren; Anders Moberg; Regine Hock; Frank McDermott; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; speleothems; palaeoclimate; stable isotopes; luminescence; karst hydrology; Holocene; Sweden; Jämtland; Physical geography; Naturgeografi;

   Abstract : 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. READ MORE

4. 2. Ashes to ashes : Applications of tephrochronology in Scandinavia

   Author : Simon A. Larsson; Stefan Wastegård; Britta Sannel; Christine Lane; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; tephrochronology; tephrostratigraphy; tephra; palaeoclimate; Last Glacial–Interglacial Transition; Scandinavia; naturgeografi; Physical Geography;

   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

5. 3. Tephra horizons in the North Atlantic region during the Early Holocene

   Author : Ewa Lind; Stefan Wastegård; Margareta Hansson; Britta Sannel; Victoria Smith; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Tephrochronology; geochemical composition; Saksunarvatn Ash; Vedde Ash; Fosen Tephra; Askja-S; palaeoclimate; Younger Dryas; Early Holocene; “XRF ITRAX”; sediment geochemistry; stable isotopes; Faroe Islands; Norway; Sweden; kvartärgeologi; Quaternary Geology;

   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

6. 4. Asian monsoon over mainland Southeast Asia in the past 25 000 years

   Author : Akkaneewut Chabangborn; Barbara Wohlfarth; Karen Kohfeld; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Asian monsoon; ITCZ; palaeo-vegetation; palaeoclimate; lake sediment; Last Glacial Maximum; Holocene; Marine Geoscience; marin geovetenskap;

   Abstract : The objective of this research is to interpret high-resolution palaeo-proxy data sets to understand the Asian summer monsoon variability in the past. This was done by synthesizing published palaeo-records from the Asian monsoon region, model simulation comparisons, and analysing new lake sedimentary records from northeast Thailand. READ MORE

7. 5. Silurian Carbonate Platforms of Gotland, Sweden - Archives of Local, Regional and Global Environmental Changes

   Author : Mårten Eriksson; Berggrundsgeologi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Sedimentologi; Sedimentology; fysisk geografi; Geologi; physical geography; Geology; Gotland; Silurian; Facies; Carbonate platforms; Sequence stratigraphy; Stable isotopes; Palaeoclimate;

   Abstract : This thesis treats the Silurian carbonate platforms of Gotland, Sweden, which formed close to the equator within the East Baltic Basin. Three different time intervals, all involving changes in facies composition and structure of the platforms, have been studied; Late Homerian, latest Homerian ? earliest Gorstian, and late Ludfordian, respectively. READ MORE