Blar i forfatter "Tennvassås, Ingrid"

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    • Characterisation of palaeosols in the Lower Cretaceous Helvetiafjellet Formation, Svalbard. Palaeo-climatic implications 

      Tennvassås, Ingrid (Master thesis; Mastergradsoppgave, 2018-05-15)
      Although the Cretaceous period is known to have been dominated by greenhouse conditions, the Early Cretaceous climatic conditions in Svalbard have been under some debate. Both indicators of warm climate such as coal seams, Ornithopod tracks and warm-water dinoflagellates, and indicators of cold climate such as arctic belemnites, glendonites and ice rafted debris have been reported. This study ...

    • Sedimentology and palynology of the Lower Cretaceous succession of central Spitsbergen: integration of subsurface and outcrop data 

      Grundvåg, Sten-A; Jelby, Mads Engholm; Śliwińska, Kasia Kamila; Nøhr-Hansen, Henrik; Aadland, Tore; Sandvik, Sara Elvelund; Tennvassås, Ingrid; Engen, Thea; Olaussen, Snorre (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-27)
      The Lower Cretaceous succession in Svalbard is commonly considered as an important analogue to age-equivalent strata on the Barents Shelf which are sporadically targeted by exploration wells. In this study, the stratigraphic and genetic relationship between the Rurikfjellet (open marine), Helvetiafjellet (paralic) and Carolinefjellet (open marine) formations of the Lower Cretaceous succession in ...