Sökning: "mineralogi"

Visar resultat 16 - 20 av 73 avhandlingar innehållade ordet mineralogi.

  1. 16. Understanding Zircon Geochronology - Constraints from Imaging and Trace Elements

    Författare :Andrius Rimsa; Berggrundsgeologi; []
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

  3. 17. Constraining the Southern Part of the Greenland Ice Sheet since the Last Glacial Maximum from Relative Sea-Level Changes, Cosmogenic Dates and Glacial-Isostatic Adjustment Models

    Författare :Charlotte Sparrenbom; Kvartärgeologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; physical oceanography; geokemi; Sedimentology; Sedimentologi; Geophysics; meteorology; mineralogi; geochemistry; mineralogy; Petrology; Geologi; fysisk geografi; physical geography; Geology; neo-glacial; in-situ cosmigenic nuclide; XRF-scanning; glacial-isostatic adjustment models; glacial history; sea-level changes; Greenland; isolation basins; fysisk oceanografi; Petrologi; meteorologi; Geofysik;

    Sammanfattning : New results are presented from the investigation of relative sea-level changes in the Nanortalik and Qaqortoq-Narsarsuaq areas in SW Greenland from c. 11 000 cal. years BP to the present. LÄS MER

  4. 18. Kort afhandling om qvartz. Med ampliss. facult. philosoph. samtycke, under [...] Joh. Gotskalk Wallerii [...] inseende, vid kongl. academien i Upsala. Utgifven, och til allmänt ompröfvande framstäld af Abraham Hedman, Westmannus. I Caroliniska lärosalen. Den [ ] junii år 1753

    Författare :Johan Gottschalk Wallerius; Abraham Hedman; Johan Gottschalk Wallerius; Uppsala universitet; []
    Nyckelord :Geology; Quartz; Mineralogy; Geologi; Mineralogi; Kvarts;

    Sammanfattning : .... LÄS MER

  5. 19. Prober-konsten, med ampl. fac. phil. samtycke, under ... Johan Gotsch. Wallerii ... uti den gustavianska läro-salen d. XI. Junii, ann. MDCCLX. Vid kongl. academien i Upsala utgifven, och till alment ompröfvande framstäld, af stipend. Zedritz. Matthias Krapp, Philipson, Medelpadus

    Författare :Johan Gottschalk Wallerius; Matthias Krapp; Johan Gottschalk Wallerius; Uppsala universitet; []
    Nyckelord :Weights and measures; Geology; Mineralogy; Metallurgy; Geologi; Mineralogi; Metallurgi; Mått; Vikter; Bergsbruk; Sverige;

    Sammanfattning : .... LÄS MER

  7. 20. Geochemical and sedimentary signatures of Phanerozoic events

    Författare :Jane Wigforss-Lange; Berggrundsgeologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; geokemi; Sedimentology; Petrology; mineralogy; geochemistry; Petrologi; mineralogi; Carbon and oxygen isotopes; Jurassic-Cretaceous boundary; K-T boundary; Late Silurian; Events; Trace elements; Sedimentologi;

    Sammanfattning : Geological and biological catastrophic events have occurred repeatedly in the Earth's history, leaving traces in the global stratigraphical record in the form of sedimentary features, geochemical anomalies and biotic turnovers. This thesis focuses on the sedimentological and geochemical signatures of several key events in the Phanerozoic stratigraphical record, and aims to interpret the different signals and the causal mechanisms behind each of these events. LÄS MER