Porphyritic syenite at Lake Mykle, the Oslo Rift - a possible derivative of larvikite.

dc.contributor.author	Andersen, T.
dc.contributor.author	Westphal, N. L.
dc.contributor.author	Frei, R.
dc.date.accessioned	2020-08-26T09:09:42Z
dc.date.available	2020-08-26T09:09:42Z
dc.date.issued	2004
dc.identifier.uri	https://hdl.handle.net/11250/2674231
dc.description.abstract	New Rb-Sr and Sm-Nd isotope data on porphyritic syenite from lake Mykle in the southern part of the Oslo Rift confirm a close compositional and genetic relationship and genetic relationship between this rock and the associated larvikite. The porphyritic syenite has initial 87Sr\/86Sr at 280 Ma between 0.7044 and 0.748, and End between + 1.56 and + 2.52. This pattern of variation is compatible with with contamination of a mantle-derived parent magma with small amounts of Precambrian calc-alkaline gneisses in the deep crust.
dc.language.iso	eng
dc.relation.ispartofseries	NGU Bulletin (442)
dc.rights	Navngivelse 4.0 Internasjonal
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/deed.no
dc.subject	LARVIKITT
dc.subject	SYENITT
dc.title	Porphyritic syenite at Lake Mykle, the Oslo Rift - a possible derivative of larvikite.
dc.type	Journal article
dc.description.localcode	51421
dc.source.pagenumber	23-28

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