ON THE ZrO$sub 2$/HfO$sub 2$ RATIO IN ZIRCONS FROM THE ALKALINE COMPLEX OF THE VISHNEVYE-ILMENSKIE MOUNTAINS (in Russian)
Journal Article
·
· Geokhimiya (U.S.S.R.) For English translation 1956-63 see Geochemistry (USSR)
OSTI ID:4727036
Zircon is a widely spread accessory mineral in the alkaline rock complex of the Vishnevye and Ilmenskie Mountains. The value of the ZrO/sub 2//HfO/sub 2/ ratio in zircons ranges from 22 to 125 and so distinctly agrees with the relative age of zircon-containing pegmatites, increasing from earlier to later ones so that it may be a criterion of the relative zircon age. The considerably higher value of the conclude that the formation of zircons in miaskites is connected with the final albitization stages in the massif. (auth)
- Research Organization:
- Inst. of Mineralogy, Geochemistry and Crystal Chemistry of Rare Elements, Moscow
- NSA Number:
- NSA-17-016275
- OSTI ID:
- 4727036
- 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. 1; ISSN GEOKA
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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