Аннотация:There are two Fe-Ti-V deposits in the Chiney pluton—
Magnitnyi and Etyrko. They represent the largest deposits
of commercially viable vanadium ore in Russia, with
average content of 0.5 wt% V2O5 and 6.3 wt% TiO2 in
ores. The Etyrko deposit hosts stratabound, mostly disseminated
titanomagnetite, whereas the Magnitnyi
deposit consists predominantly of cross-cutting ore veins
and irregular bodies in gabbronorite. The Magnitnyi
deposit contains about 1.5 billion tons of ore in several
orebodies. The major orebodies account for 89.1% of the
total ore reserves and 86.1 to 92% of mineable metal
reserves. The individual orebodies are between 5.7 m and
26.5 m thick, with the total iron content gradually decreasing
westward from 39.4 wt% to 28.9 wt%. Titanomagnetite
and ilmenite (the amount of the latter rarely exceeds 10%
of the total) are the major ore minerals. According to the
Mössbauer spectroscopy, magnetite in the titanomagnetite
ore is close to stoichiometric, and titanium is mainly
contained in ilmenite (11–13%).