Title: Distribution of K, Rb, Sr and Ba in Nain anorthosite plagioclase
Abstract: Plagioclases from a Labrador anorthosite have solKRb ratios >1000 but this does not delimit a possible parental material. Other trace element ratios support Wheeler's (1960) geological subdivision of the anorthosite. Poor correlation between solKRb ratios and per cent K may result from varying amounts of phases co-existing with plagioclase, loss of exsolved K-feldspar, or regionally prevailing P-T conditions.
Publication Year: 1970
Publication Date: 1970-03-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 18
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