ON THE ZIRCONIUM AND HAFNIUM RATIO IN ACCESSORY ZIRCON OF GRANITOIDS (in Russian)
Journal Article
·
· Geokhimiya (U.S.S.R.) For English translation 1956-63 see Geochemistry (USSR)
OSTI ID:4804024
The value of the ZnO/sub 2//HfO/sub 2/ ratio in accessory zircon of granitoids remains rather constant and ranges from 35-40. The more basic (hybrid) granitoid varieties are characterized by the greatest value of this ratio (40--53) and the most acid, by the least value (21--28). In the genetically bound rock series: granites-- aplites-- pegmatites -- quartz veins zircons from pegmatites are most enriched in hafnium. The maximum enrichment in hafnium (3.0 percent) ls observed in zircons from albitized granites. (auth)
- Research Organization:
- Inst. of Mineralogy, Geochemistry and Crystal Chemistry of Rare Elements, Moscow
- NSA Number:
- NSA-16-025629
- OSTI ID:
- 4804024
- Journal Information:
- Geokhimiya (U.S.S.R.) For English translation 1956-63 see Geochemistry (USSR), Journal Name: Geokhimiya (U.S.S.R.) For English translation 1956-63 see Geochemistry (USSR) Vol. Vol: No. 5; ISSN GEOKA
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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