| Reference Type | Report (chapter) |
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| Access Rights | Open Access |
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| Title | Igneous and metamorphic rocks of the Øksfjord area, Vest-Finnmark. Eruptive og metamorfe bergarter i Øksfjordområdet, Vest-Finnmark |
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| Report | Norges Geologiske Undersøkelse |
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| Authors | Krauskopf, Konrad B. | Author |
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| Year | 1954 |
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| Page(s) | 29-50 | Issue | 188 |
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| URL | |
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| Download URL | https://www.ngu.no/FileArchive/NGUPublikasjoner/NGUnr_188_Aarbok_1953_Krauskopf_29_50.pdf |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 16512444 | Long-form Identifier | mindat:1:5:16512444:7 |
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| GUID | 237dbce5-66f1-4874-a8b3-809e3724c566 |
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| Full Reference | Krauskopf, Konrad B. (1954) Igneous and metamorphic rocks of the Øksfjord area, Vest-Finnmark. Eruptive og metamorfe bergarter i Øksfjordområdet, Vest-Finnmark. Norges Geologiske Undersøkelse 188 p.29-50. |
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| Plain Text | Krauskopf, Konrad B. (1954) Igneous and metamorphic rocks of the Øksfjord area, Vest-Finnmark. Eruptive og metamorfe bergarter i Øksfjordområdet, Vest-Finnmark. Norges Geologiske Undersøkelse 188 p.29-50. |
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| In | (1954) Årbok 1953. Norges Geologiske Undersøkelse 188. Norges Geologiske Undersøkelse (NGU) |
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| Abstract/Notes | The 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. |
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