Essays about: "Glacial history"

Showing result 1 - 5 of 32 essays containing the words Glacial history.

1. 1. 3D modelling and resistivity measurements for hydrogeological assessments in the northern part of Vombsänkan

   University essay from Lunds universitet/Geologiska institutionen

   Author : Farid Khorshidian; [2023]
   Keywords : Conceptual 3D modelling; Resistivity; Hydrogeology; Blue Transition; Vombsänkan; Vombverket; Earth and Environmental Sciences;

   Abstract : The geology of Vombsänkan is characterized by a complex sequence of Quaternary deposits overlying the Paleozoic sedimentary bedrock. The area is 759 km2 and has recorded several ice advances followed by glacial retreats and ice melting. READ MORE

3. 2. Grain Size Analysis of Late Pleistocene Loess Deposits, Jersey

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Joakim Edlund; [2022]
   Keywords : Jersey; loess; grain size; ice age; past climate; Jersey; löss; kornstorlek; istid; forntida klimat;

   Abstract : As the world faces the effects of rapid climate change it is essential that we understand how the Earth’s climate has evolved in recent geological history. The island of Jersey harbours loess deposits which hold clues to recent climate change which have not been extensively studied. READ MORE

4. 3. Demography of Birch Populations across Scandinavia

   University essay from Uppsala universitet/Växtekologi och evolution; Uppsala universitet/Institutionen för biologisk grundutbildning

   Author : Janek Sendrowski; [2022]
   Keywords : birch; betula; pubescens; pendula; betula pubescens; betula pendula; silver birch; downy birch; demography; population structure; distribution of fitness effects; DFE; dadi; UMAP; PCA; ADMIXTURE; polyDFE; ice age; glaciation; tree; boreal forest; climate change; adaption; tetraploid; diploid-tetraploid introgression; Scandinavia; genetic cluster; pipeline; snakemake; bioinformatics; reproducible; population genetics; postglacial population expansion; demographic history; FEEMS; site-frequency spectrum; SFS; last glacial maximum; LGM; workflow; python; population expansion; population growth; EST-SFS; 0-fold degenerate; 4-fold degenerate; maximum likelihood estimation; MLE; variant call format; VCF; single-nucleotide polymorphism; SNP;

   Abstract : Boreal forests are particularly vulnerable to climate change, experiencing a much more drastic increase in temperatures and having a limited amount of more northern refugia. The trees making up these vast and important ecosystems already had to adapt previously to environmental pressures brought about by the repeated glaciations during past ice ages. READ MORE

5. 4. Population genetic analyses inform conservation of the endangered Clouded Apollo (Parnassius mnemosyne) butterfly in Sweden

   University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

   Author : Veronika Mrazek; [2022]
   Keywords : Clouded apollo; Parnassius mnemosyne; Lepidoptera; Genetic diversity; Differentiation; Inbreeding; Demographic history; Gene-flow;

   Abstract : The clouded apollo (Parnassius mnemosyne) is a palearctic butterfly with a wide distribution across Eurasia. In recent decades, however, the species has declined in many parts of its distribution range. READ MORE

6. 5. Determination of depositional environment and luminescence dating of Pleistocene deposits in the Biely Váh valley, southern foothills of the Tatra Mountains, Slovakia

   University essay from Lunds universitet/Geologiska institutionen

   Author : Ingrid Bejarano Arias; [2020]
   Keywords : Luminescence dating; glacifluvial deposits; sedimentological analysis; High Tatra Mountains; IRSL dating.; Earth and Environmental Sciences;

   Abstract : The Tatra Mountains have had several glaciations during the Quaternary. The deposits located in the southern foothills were classified as glacifluvial, based on geomorphology, but its sediments have not been studied in detail. READ MORE