Age determination from the Trondheim Region Caledonides, Norway: a preliminary report.

dc.contributor.author	Roberts, David
dc.contributor.author	Wolff, Fredrik Chr.
dc.contributor.author	Wilson, M. R.
dc.coverage.spatial	17213 Tydal
dc.coverage.spatial	16211 Stjørdal
dc.coverage.spatial	VERDAL
dc.coverage.spatial	MERÅKER
dc.coverage.spatial	STJØRDAL
dc.coverage.spatial	16213 Støren
dc.coverage.spatial	17214 Flornes
dc.date.accessioned	2020-08-26T13:10:26Z
dc.date.available	2020-08-26T13:10:26Z
dc.date.issued	1973
dc.identifier.uri	https://hdl.handle.net/11250/2674955
dc.description.abstract	Twenty-four potassium-argon age determinations have been made on metamorphic minerals and whole-rocks (phyllites) from the Caledonides of the Trondheim region, Norway. Nineteen of the apparent ages fall between 438 and 402 m.y., while 5 (4 hornblendes and 1 phyllite) range up to 570 m.y. Date greater than 438 m.y. are provisionally considered anomalous, and 438 +- 12 m.y. is tentatively suggested as a minimum age for the last metamorphic phase in this region.
dc.language.iso	eng
dc.relation.ispartofseries	NGU (288)
dc.rights	Navngivelse 4.0 Internasjonal
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/deed.no
dc.subject	PALEOZOIKUM
dc.subject	KALEDONSKE FJELLKJEDE
dc.subject	GEOKRONOLOGI
dc.subject	OMDANNING
dc.title	Age determination from the Trondheim Region Caledonides, Norway: a preliminary report.
dc.type	Journal article
dc.description.localcode	35261
dc.source.pagenumber	53-63

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