NJG50-4-04
1970
Pyroxene relations in a hyperite near Lyngdal, Norway
50
4
333-340

Pyroxenes from a hyperite body associated with Precambrian gneisses were studied optically, chemically, and by means of X-rays. Pyroxene relations show that crystallization takes place at a temperature higher than the inversion of pigeonite, and proceeds into the stability field of hypersthene. The composition and the mutual relations between the pyroxenes suggest a crystallization process for these minerals.

0029-196X
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