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dc.contributor.authorKrauskopf, Konrad B.
dc.coverage.spatial18354 Stjernøya
dc.coverage.spatial18353 Øksfjord
dc.coverage.spatial18352 Talvik
dc.coverage.spatialLOPPA
dc.coverage.spatialALTA
dc.date.accessioned2020-08-26T12:43:22Z
dc.date.available2020-08-26T12:43:22Z
dc.date.issued1954
dc.identifier.urihttps://hdl.handle.net/11250/2674623
dc.description.abstractThe principal rock of the Øksfjord area is gabbro gneiss, in hand specimen having the appearance of ordinary igneous gabbro but in the field showing conspicuous layering. Thick layers of syenite and thin layers of anorthosite and pyroxenite are interbedded with the gabbro. On the west side of the area garnet-biotite gneiss and siliceous metabolcanic rocks alternate with gabbro layers; on the east side the layers include norite, troctolite and dunite. Small lenses of meta-limestone occur at several places in the gabbro. The uniform layers of diverse compositions suggest but do not prove that the rocks are largely a product of extreme metamorphism of dominantly volcanic sequence, although some of the layers may be sills of intrusive rock. Small masses of structureless gabbro, syenite, peridotite, hornblendite and anorthosite show contact relations wich suggest that they are intrusive into the layered rocks. Possibly some of these masses represent old volcanic centers from which the original material of the layered series was erupted. The structure of the layered rocks consists of broad folds roughly outlining a basin open to the north. The basin is cut by several faults with a north to northwest strike.
dc.language.isoeng
dc.relation.ispartofseriesNGU (188)
dc.rightsNavngivelse 4.0 Internasjonal
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no
dc.subjectPETROGRAFI
dc.subjectKARTLEGGING
dc.subjectSTØRKNINGSBERGART
dc.subjectOMDANNET BERGART
dc.subjectGABBRO
dc.subjectSYENITT
dc.titleIgneous and metamorphic rocks of the Øksfjord area, Vest-Finnmark. Eruptive og metamorfe bergarter i Øksfjordområdet, Vest-Finnmark.
dc.typeJournal article
dc.description.localcode35552
dc.source.pagenumber29-50


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