Sökning: "Spitsbergen"

Visar resultat 6 - 10 av 10 avhandlingar innehållade ordet Spitsbergen.

1. 6. Depositional environments and processes across regressive to transgressive turnarounds, examples from the Devonian Baltic Basin and the Eocene Central Basin of Spitsbergen

   Författare :Anna Pontén; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : .... LÄS MER

3. 7. Nitrogenase localisation reveals cell differentiation in filamentous, non-heterocystous cyanobacteria

   Författare :Charlotta Fredriksson; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi; mikrobiologi; Microbiology;

   Sammanfattning : This thesis deals with detecting and interpreting natural and anthropogenic changes in the composition of the Arctic troposphere. It also covers quantifications of regional climate change due to the activities of mankind. LÄS MER

4. 8. Silurian-Devonian vertebrates from the Northern hemisphere

   Författare :Henning Blom; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Geovetenskap; Earth sciences; Geovetenskap; Historical Geology and Paleontology; historisk geologi och paleontologi;

   Sammanfattning : Microscopic remains of early vertebrates such as scales and dermal hone fragments are common in Silurian andDevonian rocks world wide. Although they only represent a small part of the whole animal they still provideimportant information about the organism and its evolution, ecology and distribution. LÄS MER

5. 9. The West Ny Friesland Terrane : An exhumed mid-crustal obliquely convergent orogen : by Patrik W. Nilsson

   Författare :Patrik W. Nilsson; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Geovetenskap; Earth sciences; Geovetenskap; mineralogi; petrologi och tektonik; Mineral Chemistry; Petrology and Tectonics;

   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

7. 10. Palaeobiology and taphonomy of early problematic fossils

   Författare :Mónika Marti Mus; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Geovetenskap; Earth sciences; Geovetenskap; Historical Geology and Paleontology; Historisk geologi och paleontologi;

   Sammanfattning : Extinct organisms that cannot be accommodated in any extant phylum are generally referred to as "problematic fossils". They are more numerous in progressively older strata and constitute an important part of the late Proterozoic and early Palaeozoic biota. LÄS MER