Some Large Felspar Augen from near Ilorin Town, Nigeria
AbstractLarge augen, composed principally of single crystals of potash felspar, are sporadically distributed in certain banded gneisses. It is inferred from structural and textural evidence that the augen have formed by metasomatic processes.
1973 ◽
Vol 31
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pp. 70-71
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1981 ◽
Vol 39
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1978 ◽
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