Essays about: "pseudosection"

Found 4 essays containing the word pseudosection.

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

    University essay from Uppsala universitet/Institutionen för geovetenskaper

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

    Abstract : 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. READ MORE

  3. 2. Differences in staurolite mode due to changes in bulk composition as an effect of mass transfer by fluids during metamorphism

    University essay from Institutionen för geologiska vetenskaper

    Author : Jonas Nilsson; [2014]
    Keywords : metamorphism; metapelite; metapsammite; staurolite; glen esk; selvage; fluid flow; vein formation; dalradian; scotland; highlands; thermocalc; activity; phase diagram; mineral phase; pressure; temperature; p-t estimates;

    Abstract : Results from petrographic analyses, chemical analyses and mineral phase diagram calculations show that staurolite minerals grew in selvages adjacent to quartz veins. Previous studies show the same relationships between quartz veins and garnet, as well as kyanite growth. READ MORE

  4. 3. P-T evolution of paragneisses and amphibolites from Romeleåsen, Scania, southernmost Sweden

    University essay from Lunds universitet/Geologiska institutionen

    Author : Jan Ulmius; [2013]
    Keywords : Romeleåsen; metamorphism; geothermobarometry; pseudosection; Theriak-Domino; P-T path; Hallandian Danopolonian; Sveconorwegian Romeleåsen; metamorfism; geotermobarometri; pseudosektion; P-T-utveckling; halandisk danopolonisk; svekonorvegisk; Earth and Environmental Sciences;

    Abstract : Populärvetenskaplig sammanfattning Vad har berget i Romeleåsen varit med om? Jordskorpan är uppbyggd av ett antal plattor. Vid plattgränser under oceanerna bildas ny skorpa av magma som tränger upp. Oceanplattan kan inte öka i storlek. READ MORE

  5. 4. A key fold structure within a Sveconorwegian eclogite-bearing deformation zone in Halland, south-western Sweden : geometry and tectonic implications

    University essay from Lunds universitet/Geologiska institutionen

    Author : Brendan Dyck; [2011]
    Keywords : Sveconorwegian; fold nappe; eclogite; Ätran area; U-Pb geochronology; Domino-Theriak; Earth and Environmental Sciences;

    Abstract : Retro-eclogites and associated high-pressure rocks are found in the Ullared area, southwest Sweden. These rocks are evidence of the high-pressure deformation which occurred during the formation of the c. 500 km long Sveconorwegian orogenic belt around one billion years ago. READ MORE