AbstractsEarth & Environmental Science


The study presented focuses on mapping and interpretation of the Caledonian structures on Hovedøya and Lindøya, in the inner Oslofjord. The bulk tectonic caledonian transport direction and structures within the study area are consistent with the known Caledonian structures found in the the Oslo Region. The present study differentiate between 5 deformation stages found in the study area. Structural elements identified within the study area are displayed below: Primary sedimentary structures, bedding parallel cleavage, bedding perpendicular cleavage, bedding parallel shortening, axial plane cleavage, foreland directed thrusts, hinterland directed thrusts, normal faults and development intermediate NW dipping cleavage. A new lithological and structural geological map of the study area is also presented in this thesis.