dc.contributor.author | Pedersen, Svend | |
dc.coverage.spatial | 15123 Evje | |
dc.date.accessioned | 2020-08-26T13:11:42Z | |
dc.date.available | 2020-08-26T13:11:42Z | |
dc.date.issued | 1973 | |
dc.identifier.uri | https://hdl.handle.net/11250/2674972 | |
dc.description.abstract | A Rb\/Sr isochron age determination on intrusive granite and monzonite from the Iveland-Evje area gave an age of 1038+- 43 m.y. Biotite from the granite dated by the K\/Ar method gave an age of 845+-60 m.y. These values are very similar to other age determinations on intrusive rocks from Southern Norway. The initial Sr87\/Sr86 ratio of the granite and monzonite is very low: 0.7048+-0.0003. The rocks must be genetically related to the Iveland-Evje pegmatites, which are among the latest intrusions within the Sveconorwegian igneous period. | |
dc.language.iso | eng | |
dc.relation.ispartofseries | NGU (300) | |
dc.rights | Navngivelse 4.0 Internasjonal | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | |
dc.subject | ATOMABSORPSJON | |
dc.subject | RØNTGENFLUORESCENS | |
dc.subject | MASSESPEKTROSKOPI | |
dc.subject | PREKAMBRIUM | |
dc.subject | ISOTOP | |
dc.subject | GEOKRONOLOGI | |
dc.title | Age determinations from the Iveland-Evje area, Aust-Agder. | |
dc.type | Journal article | |
dc.description.localcode | 36304 | |
dc.source.pagenumber | 33-39 | |