Search for dissertations about: "Biotite"

Showing result 11 - 15 of 43 swedish dissertations containing the word Biotite.

  2. 11. The Köli Nappe complex in Tännforsfältet western Jämtland, Swedish Caledonides

    Author : Monica Beckholmen; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This dissertation presents the Köli Nappe Complex of Tännforsfältet, an area of some 1200 km2 of volcano-sedimentary eugeoclinal rocks occurring in a shallow synformal basin, the Tännforsen Synform. The rocks have been metamorphosed under greenschist-lower amphibolite facies conditions. READ MORE

  4. 12. The effect of forest nutrients status on ectomycorrhizal growth and community structure in response to minerals

    Author : Christoffer Berner; MEMEG; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Ectomycorrhiza are a symbiosis between trees and soil inhabiting fungi. The fungal hyphae ensheath the fine roots creating a mantle and grow in between root cells to create the Hartig net, where the exchange of carbon and mineral nutrients occurs. The ectomycorrhizal fungus is dependent on the host tree to receive the carbon it needs to grow. READ MORE

  5. 13. Understanding Zircon Geochronology - Constraints from Imaging and Trace Elements

    Author : Andrius Rimsa; Berggrundsgeologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; hydrothermal; Petrology; mineralogy; hydraulic fracturing; Sveconorwegian; incipient charnockite; EBSD; cathodoluminescence; REE; Zircon; U-Pb geochronology; geochemistry; Petrologi; mineralogi; geokemi; Kerala Khondalite Belt;

    Abstract : Formation of incipient charnockite in Söndrum, SW Sweden and the Kerala Khondalite Belt (KKB), S. India is accompanied by zircon growth. The age of the dehydration event is constrained by dating newly formed zircon to 1397±4 Ma (2?, MSWD=1.7) in Söndrum and ca. READ MORE

  6. 14. Vein controlled crystal size distributions of Barrovian index minerals

    Author : Alexander Lewerentz; Alasdair Skelton; Uwe Ring; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The concept of index mineral based metamorphic zones was first introduced by George Barrow in 1912, and Barrovian metamorphism is still applied by metamorphic petrologists. Today the importance of metamorphic fluids for driving metamorphic reactions is widely recognised. READ MORE

  7. 15. The external mycorrhizal mycelium - growth and interactions with saprophytic microorganisms

    Author : Pål Axel Olsson; Biodiversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; bacteriology; Microbiology; Fatty acids; Mycorrhiza; Bacteria; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi;

    Abstract : The interactions between external mycorrhizal mycelia and saprophytic microorganisms were studied in experiments with growth chambers specially designed to enable the mycelia to develop in root-free soil compartments. The growth of the mycorrhizal mycelia was estimated by use of biochemical signature compounds. READ MORE