Show simple item record

dc.contributor.authorStarmer, Ian C.
dc.coverage.spatial16122 Tvedestrand
dc.coverage.spatial16121 Gjerstad
dc.coverage.spatialTVEDESTRAND
dc.coverage.spatialVEGÅRSHEI
dc.coverage.spatialRISØR
dc.date.accessioned2020-08-26T13:15:48Z
dc.date.available2020-08-26T13:15:48Z
dc.date.issued1976
dc.identifier.urihttps://hdl.handle.net/11250/2675038
dc.description.abstractThe geology and major fold structures of part of the Bamble Series are described from an area near Risør, Aust-Agder (some 15 km SW of the Levang paragneiss dome). Major structures are shown to have formed prior to the intrusion of Sveconorwegian \"hyperites\" and seem to belong to the earlier Svecofennian orogeny. The subsequent Sveconorwegian tectonism modified the older structures and caused deformation around the newly intruded \"hyperites\". The Svecofennian complex consisted largely of supracrustals and granitic gneisses, including those of the Levang paragneiss dome, just south of Kragerø. Immediately southwest of this, major structures are complex and disordered due to the development of basement-cover tectonics during the Sveconorwegian orogeny, which affected an area stabilised locally both by this dome and by some of the larger hyperites. The Sveconorwegian metamorphism amphibolitised the hyperites, remobilised some granitic rocks (with late-stage pegmatites) and produced isolated ortho-amphibole rocks.
dc.language.isoeng
dc.relation.ispartofseriesNGU (327)
dc.rightsNavngivelse 4.0 Internasjonal
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no
dc.subjectFOLDNING
dc.subjectPETROLOGI
dc.subjectOMDANNING
dc.subjectPREKAMBRIUM
dc.subjectSTRUKTURGEOLOGI
dc.subjectGEOKRONOLOGI
dc.titleThe early major structure and petrology of rocks in the Bamble Series, Søndeled-Sandnesfjord, Aust-Agder.
dc.typeJournal article
dc.description.localcode35560
dc.source.pagenumber77-97


Files in this item

Thumbnail

This item appears in the following Collection(s)

  • Artikler [1063]
    Artikler fra seriene NGU, NGU Bulletin og NGU Skrifter

Show simple item record

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