Sökning: "petrologi och tektonik"
Visar resultat 16 - 20 av 35 avhandlingar innehållade orden petrologi och tektonik.
16. Tectonic History and Present-Day Deformation in the Zagros Fold-Thrust Belt
Sammanfattning : This thesis uses various approaches such as observation of satellite images, field investigations, analogue modeling and GPS measurements to constrain deformation of the basement and sedimentary cover of the Zagros fold-thrust belt in time and space.Focal mechanism solutions of most earthquakes indicate that deformation in the Zagros basement is due to shortening and thickening through numerous thrust faults. LÄS MER
17. Mössbauer spectroscopy under high pressures and temperatures
Sammanfattning : Iron plays a very important role in Earth materials. 57Fe- Mössbauer spectroscopy provides valuable information on the oxidation state and the near surrounding of iron atoms in crystal structures. LÄS MER
18. Diagenesis and Sequence Stratigraphy : an integrated approach to constrain evolution of reservoir quality in sandstones
Sammanfattning : Diagenesis and sequence stratigraphy have been formally treated as two separate disciplines in sedimentary petrology. This thesis demonstrates that synergy between these two subjects can be used to constrain evolution of reservoir quality in sandstones. LÄS MER
19. Thin sheet approximations for geodynamic applications
Sammanfattning : Thin sheet approximations are widely used in geodynamics because of their potential for fast computing of 3D lithospheric deformations using simple numerical techniques. However, this simplicity imposes limits to boundary conditions, rheological settings and accuracy of results. LÄS MER
20. The West Ny Friesland Terrane : An exhumed mid-crustal obliquely convergent orogen : by Patrik W. Nilsson
Sammanfattning : Ny Friesland, in northeastern Svalbard, is the type-area for transpressive orogeny. The West Ny Friesland Terrane (WNT) is composed of a c. 12 km thick basal succession of amphibolite-grade schists and gneisses, previously thought to be the lower of a c. 20 km thick succession of concordant, volcano-sedimentary strata. LÄS MER