Sökning: "optical stimulated luminescence dating"

Hittade 2 uppsatser innehållade orden optical stimulated luminescence dating.

1. 1. Combining luminescence dating and sedimentary analysis to derive the landscape dynamics of the Velická Valley in the High Tatra Mountains, Slovakia

   Master-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Roos van Wees; [2020]
   Nyckelord :IRSL; Chronology; Sedimentology; Landscape development; Middle Pleistocene; Modern Analogues; Clast shape analysis; Maximum particle size; High Tatras; Slovakia; Earth and Environmental Sciences;

   Sammanfattning : Luminescence dating is widely used in combination with sedimentological analysis to reconstruct the landscape development of the Quaternary period. Here, quartz and K-feldspar measurements are used to date and evaluate the luminescence characteristics of sediments from seven sites of the lower part of the Velická valley (995-1250 m a.s.l. LÄS MER

3. 2. 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