Sökning: "ice-rafted debris"

Hittade 2 uppsatser innehållade orden ice-rafted debris.

1. 1. Stratigrafin i Hanöbukten under senaste glaciationen : en studie av borrkärnor från IODP’s expedition nr 347

   Kandidat-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Gisela Åberg; [2014]
   Nyckelord :ice-rafted debris; lervarvskronologi; Bølling; IODP; Hanöbukten; Östersjön; Earth and Environmental Sciences;

   Sammanfattning : The development of Hanö Bay during the last ice age has been investigated by analyzing cores from IODP’s Balitc Sea Palaeoenvironment expedition in the Baltic Sea. By analyzing the presence of Ice Rafted Debris, correlating one of the varved clay units to Ringbergs (1991)regional varve chronology from southeastern Sweden, analyzing pollen grains and measuring loss on ignition a few gaps in the history of Hanö Bay has been uncovered. LÄS MER

3. 2. Magnetic grain-size analyses of Holocene sediments in the North Atlantic and Norwegian Sea : palaeoceanographic applications

   Magister-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Torbjörn Wall; [2004]
   Nyckelord :magnetic grain-size; magnetic hysteresis loops; Reykjanes Ridge; Vøring plateau; North Atlantic; Norwegian Sea; deep ocean currents; Holocene; magnetisk kornstorlek; magnetiska hysteresis-lopar; Reykjanesryggen; Vøringplatån; Nordatlanten; Norska havet; djuphavsströmmar; Holocen; Earth and Environmental Sciences;

   Sammanfattning : High-resolution magnetic hysteresis measurements were carried out on three sediment cores, one from the North Atlantic and two from the Norwegian Sea. These measurements can be used to reconstruct changes in magnetic grain-size. Physical grain-size has been interpreted as a proxy for bottom current intensity (McCave et al. LÄS MER