NGT44-1-02
1964
Zircons from some metamorphic rocks in the Stavanger area (Southern Norway).
44
1
11-17

Albite-porphyroblasts-schists and feldspar-rich gneisses in the Stavanger area contain more and bigger zircon crystals than the surrounding phyllites. This indicates that the feldspar bearing rocks did not originate through metasomatism of phyllites, but that they were formed from more coarse grained sediments with higher silica and sodium contents than the phyllite

0029-196x
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