Essays about: "Alexandra Engström Johansson"

Found 2 essays containing the words Alexandra Engström Johansson.

1. 1. Single-Grain Zircon U-Pb Dating and Magnetic Susceptibility of Polish Loess to Determine Late Quaternary Dust Provenance and Paleoclimate

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Alexandra Engström Johansson; [2018]
   Keywords : dust provenance; Polish loess; paleoclimate; single-grain zircon U-Pb dating; magnetic susceptibility; härkomstområden för atmosfäriskt stoft; polsk lössjord; paleoklimat; U-Pb datering av zirkoner; magnetisk susceptibilitet;

   Abstract : Windblown mineral dust has accumulated into thick loess layers across the European continent. Loess deposits are valuable paleoclimatic archives as they record climate change on centennial- to glacialinterglacial timescales. READ MORE

3. 2. Using Bulk XRF-Analysis of Chinese Loess to Determine High-Resolution Records of Dust Provenance

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Alexandra Engström Johansson; [2017]
   Keywords : dust; provenance; elemental ratios; Chinese Loess Plateau;

   Abstract : Understanding the sources of the dust that forms the extensive loess deposits on the Chinese Loess Plateau is crucial for reconstructing atmospheric circulation patterns and dust pathways. Dust sources are however highly debated, mainly due to the low resolution of many records and the often ambiguous nature of geochemical proxies. READ MORE