Essays about: "thesis Geochemistry"

Showing result 1 - 5 of 16 essays containing the words thesis Geochemistry.

  1. 1. Syn-Magmatic Deformation Structures in the Slaufrudalur Pluton, East Iceland

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Chun Hei Ho; [2023]
    Keywords : Granite; Iceland; magma chamber; magmatic microstructure; melt fraction; mush; pluton; rheology; strain; syn-magmatic deformation;

    Abstract : Structures and deformation mechanisms of magmatic rocks are controlled by rheology. An increase in melt fraction can weaken a rock body and localises significant amount of strain. This interplay between rheology, melting and deformation in a magma reservoir, however, is not always clearly documented in literature. READ MORE

  3. 2. Carbon Storage in Quaternary Deposits of the Circum-Arctic Permafrost Region

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Annegret Udke; [2021]
    Keywords : Quaternary deposits; Carbon storage; Permafrost region; Organic Geochemistry; Sedimentology; Vulnerability; Thermokarst;

    Abstract : Rapid warming in northern latitudes will lead to permafrost thaw and subsequent carbon remobilisa­tion and release to the atmosphere. To incorporate the permafrost carbon climate feedback in globalEarth System Models, it is of importance to know the carbon stored in the circum­Arctic permafrostregion as accurate and precise as possible. READ MORE

  4. 3. The Eemian Baltic Sea hydrography and paleoenvironment based on foraminiferal geochemistry

    University essay from Lunds universitet/Geologiska institutionen

    Author : Julia Chonewicz; [2020]
    Keywords : trace elements; benthic foraminifera; last interglacial; temperature reconstruction; geochemistry; Earth and Environmental Sciences;

    Abstract : I den här masteruppsatsen undersöktes geokemin i kalkskalen av bottenlevande foraminiferer från Anholt (Kattegat), Ristinge (Bälthavet) och Obrzynowo (Egentliga Östersjön), för att rekonstruera de hydrografiska förhållanden i Östersjön och paleomiljön under den senaste interglacialen (130 - 115 ka BP). De variabler som analyserades innefattade Mg/Ca, Ba/Ca och Mn/Ca samt stabila syre- och kolisotoper (δ18O och δ13C) i kombination med data från tidigare studier och modern hydrografi. READ MORE

  5. 4. Fluid inclusions and geochemistry of the Peña del Seo W-deposit, northwest Spain : Controlling mechanisms for tungsten deposition

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Sara Bergström; [2020]
    Keywords : Greisen-system; fluid inclusion; tungsten; granite; northwestern Spain;

    Abstract : The Peña del Seo tungsten deposit in northwestern Spain is situated in the tin (Sn)-tungsten (W) metallogenic province of Europe − one of the richest tin-tungsten (tantalum-lithium) mineral provinces in the world. The European Union’s current goal is to become self-sufficient of these commodities in the near future and the iTARG3T project was launched in order to improve the understanding and provide innovative exploration methods of these types of deposits. READ MORE

  6. 5. A geoarchaeological study on two Norwegian boat graves : Soil analysis and an attempt of forensic work strategy and thinking in the interpretation of the results

    University essay from Umeå universitet/Institutionen för idé- och samhällsstudier

    Author : Stefano Vilardi; [2019]
    Keywords : Geoarchaeology; forensic approach; Geochemistry; boat graves;

    Abstract : The following paper is the final thesis of two years long experimental work conducted on two different collections of soil samples coming from two different Norwegian archaeological sites. In particular, the first collection of soil samples comes from an identified boat grave from the Viking Age (eg Sykehus area Kristiansand County, Vest-Agder). READ MORE