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Geochemical alteration of pyrochlore group minerals: Betafite subgroup
pyrochlore group minerals Betafite subgroup
2012/4/6
Relatively low-temperature, secondary alteration is common in samples of metamict betafite and initially proceeds bythe substitution mechanisms ANaYF--+ADYD,ACaYO--+ADYD,and ACaXO--+ADXD.Alteration is...