Sökning: "metasedimentära bergarter"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden metasedimentära bergarter.

  1. 1. Petrography and Thermodynamic Modelling of Svecofennian Arsenic-bearing Metasupracrustal Rocks in the Arlanda Area, West-Central Fennoscandian Shield

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Klara Skoog; [2022]
    Nyckelord :Bergslagen; Svecokarelian orogeny; metamorphism; arsenic; optical microscopy; electron microprobe; thermodynamic modelling; Bergslagen; Svecokarelska orogenesen; metamorfos; arsenik; optisk mikroskopering; elektron mikrosond; termodynamisk modellering;

    Sammanfattning : The Arlanda area is a construction intensive area facing problems with risk of leaching of arsenic (As) from the bedrock to surface- and groundwater. Construction projects in the area have had problems with high levels of As in the bedrock and the risk of leaching increases through processing of aggregates and blasting of the bedrock. LÄS MER

  3. 2. Tracing the Origin of Metasedimentary Rocks in the Faroe-Shetland Basin

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Sarah Eriksson; [2016]
    Nyckelord :Faroe-Shetland basin; Isotope correlation; metasediments; element analysis; Färö-Shetland bassängen; isotopkorrelation; metasediment; geokemisk analys;

    Sammanfattning : The Faroe-Shetland region has been exposed to a long history of tectonic events and the geology in the area is rather complex. This history has led to the formation large metasedimentary deposits, though the origin of these deposits is not yet fully understood. Possible source areas are Greenland, Norway and Scotland. LÄS MER

  4. 3. Petrology of Birimian granitoids in southern Ghana : petrography and petrogenesis

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Mikael Grenholm; [2011]
    Nyckelord :Ghana; Birimian; granitoids; subduction; TTG; water-saturated melting; transcurrent deformation; Earth and Environmental Sciences;

    Sammanfattning : Den Paleoproterozoiska Birimiska terrinen består av vulkaniska och sedimentära bergarter i grönstensbälten och metasedimentära bassänger som har blivit intruderade av två generationer granitoider. Den Birimiska terrinen utgör en stor del av den västafrikanska kratonen. LÄS MER

  5. 4. The copper sulphide mineralization of the Zinkgruvan Deposit, Bergslagen, Sweden

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Karolina Bjärnborg; [2009]
    Nyckelord :Zinkgruvan; copper sulphide mineralization; chalcopyrite; cubanite; kopparsulfidmineralisering; kopparkis; kubanit; Earth and Environmental Sciences;

    Sammanfattning : At Zinkgruvan, Sweden, zinc, lead and silver are mined from a stratiform ore body. It is considered syngenetic and situated in metavolcanic and metasedimentary rocks. A fault, the Knalla fault, separates the Zinkgruvan deposit into two parts. LÄS MER

  7. 5. The mineral composition of the Burkland Cu-sulphide deposit at Zinkgruvan, Sweden : a supplementary study

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Christine Andersen; [2009]
    Nyckelord :Zinkgruvan; Bergslagen; Åmmeberg-deposit; Burkland Cu-mineralisation; chalcopyrite; hydrothermalcopper sulphide; VMS; SEDEX copper sulphide; SEDEX; Åmmeberg-malmförekomst; Burkland kopparmineralisering; kopparkis; hydrotermal kopparsulfid; Earth and Environmental Sciences;

    Sammanfattning : The Zinkgruvan Mining AB, situated in south-central Sweden in Örebro County, south-east of Åmmeberg, plans to expand their production on a massive, carbonate hosted copper-sulphide ore deposit, the Burkland Cu-mineralization in the eastern part of Knalla. At present mainly Zn-Pb-Ag are mined. LÄS MER