Sökning: "Aron Varhelyi"

Hittade 2 uppsatser innehållade orden Aron Varhelyi.

1. 1. Quaternary Arctic foraminiferal isotopes: species reliability and palaeoceanographic application

   Master-uppsats, Stockholms universitet/Institutionen för geologiska vetenskaper

   Författare :Aron Varhelyi; [2018]
   Nyckelord :Palaeoceanography; Arctic; foraminifera; stable isotopes; Paleoceanografi; Arktis; foraminiferer; stabila isotoper;

   Sammanfattning : To investigate whether foraminiferal stable isotope (δ18O/δ13C) variations have potential as a chronostratigraphic tool in the Arctic Ocean, this thesis presents new δ18O/δ13C data from five marine sediment cores. Three of those are downcore analyses (PS92/54-1; TC/PC-03; PC-07) and the remaining two are core top analyses (PC-04; PC-08). LÄS MER

3. 2. The late Holoce 14C reservoir age in the Chukchi Sea as inferred from tephra in marine sediments

   Kandidat-uppsats, Stockholms universitet/Institutionen för geologiska vetenskaper

   Författare :Aron Varhelyi; [2016]
   Nyckelord :Tephra; Aniakchak; Holocene; Chukchi Sea;

   Sammanfattning : Volcanic ash, or tephra, blankets the local and regional landscape following a volcanic eruption. If this ash layer is preserved and identified, it can act as a time synchronous marker bed (isochron) for correlation between marine, terrestrial, glacial and lacustrine deposits. LÄS MER