Replacement of primary monazite by apatite-allanite-epidote coronas in an amphibolite facies granite gneiss from the Eastern Alps

Accessory monazite crystals in granites are commonly unstable during amphibolite facies regional metamorphism and typically become mantled by newly formed apatite-allanite-epidote coronas. This distinct textural feature of altered monazite and its growth mechanism were studied in detail using backsc...

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Veröffentlicht in:	The American mineralogist 1998-04, Vol.83 (3-4), p.248-258
Hauptverfasser:	Finger, Fritz, Broska, Igor, Roberts, Malcolm P, Schermaier, Andreas
Format:	Artikel
Sprache:	eng
Schlagworte:	absolute age accessory minerals allanite Alps amphibolite facies apatite Carboniferous dates Eastern Alps electron probe data epidote epidote group Europe facies gneisses granites igneous and metamorphic rocks igneous rocks metals metamorphic rocks metamorphism metasomatism microstructure Mineralogy Mississippian monazite Mountains orthosilicates Paleozoic Petrology phosphates plutonic rocks prograde metamorphism rare earths S-type granites silicates sorosilicates Tauern Window U/Th/Pb
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