NJG48-1/2-09
1968
Rb-Sr isochron for older gneisses of the Tafjord area, basal gneiss region, southwestern Norway
48
1, 2
127-131

The older gneisses of the Tafjord area in the basal gneiss region of southwestern Norway yield a Rb-Sr whole-rock isochron age of 1.00 (±0.15)x109 years and a K-Ar biotite age of 383 (±12)x108 years. These ages are consistent with the geologic interpretation that the older gneisses are Precambrian rocks, recrystallized during Caledonian orogeny.

0029-196X
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