A5012473919- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Geochemistry and Geologic Mapping
- earthquake and tectonic studies
- Geological Studies and Exploration
- Paleontology and Stratigraphy of Fossils
- Hydrocarbon exploration and reservoir analysis
- Mineralogy and Gemology Studies
- Crystal Structures and Properties
- Clay minerals and soil interactions
- Geochemistry and Elemental Analysis
- Mine drainage and remediation techniques
- Hydraulic Fracturing and Reservoir Analysis
- Geological Modeling and Analysis
- Space Exploration and Technology
- Geological formations and processes
- CO2 Sequestration and Geologic Interactions
- Spacecraft Design and Technology
- Space exploration and regulation
- Glass properties and applications
- Diamond and Carbon-based Materials Research
- Heavy metals in environment
- Geomagnetism and Paleomagnetism Studies
- Pleistocene-Era Hominins and Archaeology
- Water Quality and Resources Studies
Norsk Teknisk Museum
2014-2023
UiT The Arctic University of Norway
2003-2020
Swedish Museum of Natural History
1993
University of Oslo
1990
Abstract Kyanite‐ and phengite‐bearing eclogites have better potential to constrain the peak metamorphic P–T conditions from phase equilibria between garnet + omphacite kyanite phengite quartz/coesite than common, mostly bimineralic (garnet omphacite) eclogites, as exemplified by this study. Textural relationships, conventional geothermobarometry thermodynamic modelling been used evolution of Tromsdalstind eclogite Tromsø Nappe, one biggest exposures in Scandinavian Caledonides. The...
Abstract We report the first finding of diamond in crustal rocks from Tromsø Nappe North Norwegian Caledonides. Diamond occurs situ as inclusions garnet gneiss at Tønsvika near Tromsø. The rock is composed essentially garnet, biotite, white mica, quartz and plagioclase, minor constituents include kyanite, zoisite, rutile, tourmaline, amphibole, zircon, apatite carbonates (magnesite, dolomite, calcite). microdiamond, identified by micro‐Raman spectroscopy, cuboidal to octahedral shape ranges...
Research Article| March 01, 2016 Devonian subduction and syncollisional exhumation of continental crust in Lofoten, Norway Nikolaus Froitzheim; Froitzheim 1Steinmann-Institut, University Bonn, Poppelsdorfer Schloss, 53115 Germany Search for other works by this author on: GSW Google Scholar Irena Miladinova; Miladinova Marian Janák; Janák 2Earth Science Institute, Slovak Academy Sciences, Dúbravská 9, 84005 Bratislava 45, Republic Kåre Kullerud; Kullerud 3Norwegian Mining Museum, Hyttegata 3,...
Carbonatites (sensu stricto) are igneous rocks typically associated with continental rifts, being emplaced at relatively shallow crustal levels or as extrusive rocks. Some carbonatites are, however, related to subduction and lithospheric collision zones, but so far no carbonatite has been reported from ultrahigh-pressure (UHP) metamorphic terranes. In this study, we present detailed petrological geochemical data on the Tromsø Nappe—a UHP terrane in Scandinavian Caledonides. Massive weakly...
Rocks occurring in narrow shear zones (<4 m wide) a gabbro–anorthosite near Nusfjord, Flakstadøy, Lofoten, Norway, include Cl-enriched mineral assemblages, Cl-free assemblages and eclogite-facies assemblages. Mineral equilibria calculations suggest that the different formed under similar pressure temperature conditions, at P = 11–14 kbar T 650–700°C. One reason for mineralogical variations of is rocks evolved from three distinctly protolith types. Interactions between an externally derived...
Early Caledonian deformation in an outboard terrane (Storfjället) the central Scandinavian Caledonides is constrained to time-period Arenig Caradoc on thebasis of U-Pb zircon age determinations. A trondhjemite clast a conglomerate belonging supracrustal sequence that was affected by early deformational event yields 489 +10 –5 Ma. granite intruded after this defines 445 +24 –6 The similar intrusion contiguous (Gjersvik) dated at 483 +5 –3 Ma and agreement with Rb–Sr whole-rock isochron 438 ±...
Abstract Integrated structural, geochemical, and geochronological investigations were conducted on metasedimentary rocks in the eclogite‐bearing Tsäkkok Lens of Seve Nappe Complex (Scandinavian Caledonides) to resolve its exhumation history. Three deformation events are defined. D1 is likely related prograde peak‐metamorphic stages, represented by a locally preserved S1. D2 resulted vertical shortening defined pervasive S2 cm‐/m‐scale F2 closed folds. terminated with Scandian thrusting,...