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dc.contributor.authorNeumann, Henrich
dc.coverage.spatial15134 Dalen
dc.coverage.spatial15133 Grøssæ
dc.coverage.spatial15132 Fyresvatnet
dc.coverage.spatial15131 Bandak
dc.coverage.spatialNISSEDAL
dc.coverage.spatialÅMLI
dc.coverage.spatialEVJE OG HORNNES
dc.coverage.spatialKVITESEID
dc.coverage.spatialTOKKE
dc.coverage.spatialVINJE
dc.coverage.spatialFYRESDAL
dc.coverage.spatialBYGLAND
dc.coverage.spatialVALLE
dc.coverage.spatialTELEMARK
dc.coverage.spatialAGDER
dc.date.accessioned2020-08-26T12:44:52Z
dc.date.available2020-08-26T12:44:52Z
dc.date.issued1955
dc.identifier.urihttps://hdl.handle.net/11250/2674633
dc.description.abstractThe deposits have been known for more than 250 years, and have been worked off and on during that period of time with no great success. The total production has probably not been more than one hundred tons of copper. As shown in figs. 1 and 2 they are situated in an area consisting of supracrustal rocks which are probably an extension of the Telemark formation found to the north. The supracrustal rocks, quartzites and amphibolites, contain very numerous irregular lumps and dykes of granite and pegmatite. Pegmatites have been mined for copper in Amalie gruve and Gamle gruve. The following minerals have been found: Plagioclase, quartz, biotite, delessite, garnet, magnetite, apatite, yellow beryl, brookite, epidote, fluorite, chalcocite, bornite, malachite, chrysocolla, uraninite, kasolite, uranotil. The origin of the cyprin (green vesuvianite) from Straumsheia is uncertain, it does not belong to the paragenesis of the cupriferous pegmatites. Brookite and kasolite are new species for Norway.
dc.language.isonor
dc.relation.ispartofseriesNGU (191)
dc.rightsNavngivelse 4.0 Internasjonal
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no
dc.subjectPETROGRAFI
dc.subjectOMDANNET BERGART
dc.subjectSTØRKNINGSBERGART
dc.subjectKARTLEGGING
dc.subjectBERGGRUNNSGEOLOGI
dc.subjectMALMFOREKOMST
dc.titleKobberforekomster på Straumsheia.
dc.typeJournal article
dc.description.localcode35565
dc.source.pagenumber18-29


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    Artikler fra seriene NGU, NGU Bulletin og NGU Skrifter

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal