Sökning: "Emma Lagerbäck Adolphi"

Hittade 2 uppsatser innehållade orden Emma Lagerbäck Adolphi.

1. 1. Optically Stimulated Luminescence Dating and Last Glacial Climate Reconstruction from the Lingtai Loess Section, Chinese Loess Plateau

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Emma Lagerbäck Adolphi; [2016]
   Nyckelord :Last Glacial; optical stimulated luminescence dating; Chinese loess plateau; Lingtai; magnetic susceptibility; mass accumulation rate; climate reconstruction;

   Sammanfattning : High resolution dating of loess on the Chinese Loess Plateau (CLP) using Optically Stimulated Luminescence (OSL) has increased the understanding of past monsoon climate but also raised questions regarding dust mass accumulation rate (MAR), the presence of disturbances or gaps in the sediment record, a possible teleconnection between North Atlantic and East Asian monsoon climate, and whether these events are due to climate variability, local settings, or age model uncertainties. This study undertakes a detailed (<20cm sampling resolution) -OSL investigation of the Lingtai section to create an independent age model using linear regression, to reconstruct monsoon climate changes using magnetic susceptibility(MS) and grain size (GS) proxies, as well as to calculate MAR for the site. LÄS MER

3. 2. Characterization of Weathering Effects in Holocene Loess and Paleosol, Kluane Lake, Yukon, Canada.

   Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Emma Lagerbäck Adolphi; [2014]
   Nyckelord :weathering indicators index paleoclimate;

   Sammanfattning : When measuring weathering intensity of paleosols there arevarious methods and ratios that can be used. This studyexamines several weathering indicators too see which are bestapplied and most effective on loess and paleosols from Yukon,Canada. LÄS MER