NJG55-2-04
1975
Rb-Sr whole rock dating of the Nordagutu granite, Oslo Region, Norway
55
2
171-178

A Rb-Sr whole rock isochron based on six samples of Nordagutu granite defines a Permian age of 284 ± 7 (2?) m.y. and an initial 87Sr/86Sr ratio of 0.7044 ± 2 (2?). This granite, intruding Precambrian rocks just outside the southwestern corner of the Oslo Region, is interpreted as cogenetic with the main plutonic series of the Oslo Region.

0029-196X
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