Essays about: "Sr isotopes"

Found 4 essays containing the words Sr isotopes.

1. 1. Uptake and retainment of radionuclides in edible mushrooms – from fruiting to cooking

   University essay from

   Author : Delshad Mansour Ayoubi; [2022-12-06]
   Keywords : Medical physics; Activity concentration; Transfer coefficient; Dose;

   Abstract : Purpose: The purpose of this study was to study the uptake, distribution and transfer of Mn-54, Zn-65, U-238, U-235, U-234, and Po-210 in mushrooms and their respective caps and stalks, the effects of chelates and ligands, and the potential release of radionuclides during a cooking procedure. Introduction: Fungi are organisms that are composed of a fruiting body (mushroom) and tubular hyphae, that branches out into complex networks called mycelium. READ MORE

3. 2. Submarine Alteration of Seamount Rocks in the Canary Islands: Insights from Mineralogy, Trace Elements, and Stable Isotopes

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Aduragbemi Oluwatobi Sofade; [2018]
   Keywords : Canary Islands; seamounts; submarine alteration; trace elements; nannofossils; Kanarieöarna; djuphavsberg; undervattensomvandling; spårämnen; nanofossiler;

   Abstract : Seamounts play an important role in facilitating the exchange of elements between the oceanic lithosphere and the overlying seawater. This water-rock interaction is caused by circulating seawater and controls the chemical exchange in submarine and sub-seafloor rocks. READ MORE

4. 3. [87]Sr/[86]Sr in plagioclase, evidence for a crustal origin of the Hakefjorden Complex, SW Sweden

   University essay from Lunds universitet/Geologiska institutionen

   Author : Alexandra Glommé; [2015]
   Keywords : Plagioclase; Älgön; Sr-isotopes; Sweden; MC-ICP-MS; Hakefjorden complex; geochemistry; SEM; Earth and Environmental Sciences;

   Abstract : The studied intrusion, the Hakefjorden Complex on Älgön is a norite-anorthosite complex situated in the archipelago on the west coast of Sweden. The origin of the intrusion will be deduce through in situ Sr-isotope analysis by MC-ICP-MS (multiple collector- inductively coupled plasma- mass spectrometry) on plagioclase, together with petrographic description and chemical analysis. READ MORE

5. 4. A lithogeochemical study of northern Sweden and the Kiruna and Malmberget iron-apatite ore deposits

   University essay from Uppsala universitet/Berggrundsgeologi

   Author : Jon Lundh; [2014]
   Keywords : REE; trace elements; iron-apatite ore deposit; suite; oxygen isotopes; magnetite; Kiruna; Malmberget; Haparanda; Edefors; Perthite-monzonite;

   Abstract : The iron apatite mineralizations of northern Sweden are mainly situated in supracrustal rocks and are thought to have formed during approximately the same time as the major plutonic suites in northern Sweden. In this thesis the Malmberget iron apatite ore deposit have been compared to the Kiruna iron apatite ore deposit to see whether the role of hydrothermal processes are different between the two ore districts. READ MORE