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2004
Plagioclase crystals characterized by compositional zoning are typical of the Zigana Granitoid (ZG), NE Turkey. The zoned crystals, which show textural equilibrium with the assemblage quartz + plagioclase + K-feldspar + hornblende + biotite + pyroxene,+ magnetite + ilmenite, exhibit oscillatory zoning.
Karsli, O, Aydin, F, Sadiklar, MB
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Plagioclase crystals characterized by compositional zoning are typical of the Zigana Granitoid (ZG), NE Turkey. The zoned crystals, which show textural equilibrium with the assemblage quartz + plagioclase + K-feldspar + hornblende + biotite + pyroxene,+ magnetite + ilmenite, exhibit oscillatory zoning.
Karsli, O, Aydin, F, Sadiklar, MB
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Geochronology of portuguese granitoids: some problems
Revista da Universidade de Aveiro. Geociências, 1986São referidos diversos requisitos e pressupostos envolvidos na datação radiométrica, especialmente os relacionados com o método Rb-Sr, apresentando-se no contexto de cada um deles algumas questões que têm a ver com as datações de granitóides portugueses.
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