Search for dissertations about: "Berggrundsgeologi"
Showing result 16 - 20 of 65 swedish dissertations containing the word Berggrundsgeologi.
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16. Origin of the Kleva Ni-Cu sulphide mineralisation in Småland, southeast Sweden
Abstract : The Kleva Ni-Cu sulphide deposit is situated within a gabbro-diorite intrusive complex in southeast Sweden. The basement north of the intrusive complex is dominated by 1.81–1.77 Ga granites of the Palaeoproterozoic Transscandinavian Igneous Belt (TIB). READ MORE
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17. Origin and the evolution of diatoms through the integration of paleontology and phylogenetics
Abstract : Diatoms, the prominent photosynthetic eucaryotes, have inhabited the world’s oceans for at least the past 120 Ma since their first appearance in the Lower Cretaceous. There are also records of older diatoms, from the Jurassic dating to ca. 172 Ma and ca. 165 Ma, however these are poorly documented. READ MORE
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18. Stratigraphy and facies of Middle Silurian epicontinental carbonate platform deposits of Gotland, Sweden
Abstract : The Silurian foreland of Scandinavia included a vast epicontinental carbonate platform system of which the island of Gotland (Sweden) is an erosional remnant. This thesis treats the Late Wenlock succession (Cyrtograptus lundgreni, Pristiograptus dubius parvus, Gothograptus nassa, Colonograptus(?) praedeubeli, and the Co(?) deubeli zones), and emphasises the sedimentology and biostratigraphy of these deposits. READ MORE
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19. Tectonic implications of ca. 1.45 Ga granitoid magmatism at the southwestern margin of the East European Craton
Abstract : Between ca 1.53 and 1.40 Ga, the southwestern margin of the East European Craton was subjected to extensive magmatism and deformation. While various suites of anorthositic, mangeritic and charnockitic-granitic rocks were emplaced between ca. READ MORE
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20. The flux of extraterrestrial matter to Earth as recorded in Paleogene and Middle Ordovician marine sediments
Abstract : This thesis aims at reconstructing events in the solar system, mainly collisional events in the asteroid belt, by searches for extraterrestrial minerals in Paleogene and Middle Ordovician marine sediments on Earth. Recent empirical evidence show that Earth has experienced a few brief periods during the Phanerozoic when the flux of extraterrestrial matter significantly increased. READ MORE