Yu. B. Mironov
A. P. Karpinsky Russian Geological Research Institute (Karpinsky Institute)
Russian Federation

Mironov Yuriy Borisovich – Doctor of Geological and Mineralogical Sciences, Head of Department

74 Sredny Pr., St. Petersburg, 199106

V. Z. Fuks
A. P. Karpinsky Russian Geological Research Institute (Karpinsky Institute)
Russian Federation

Fuks Vladimir Zinovevich – Leading Expert

74 Sredny Pr., St. Petersburg, 199106

M. A. Tkachenko
A. P. Karpinsky Russian Geological Research Institute (Karpinsky Institute)
Russian Federation

Tkachenko Maksim Aleksandrovich – Candidate of Geological and Mineralogical Sciences, Deputy Director General

74 Sredny Pr., St. Petersburg, 199106

V. I. Leontiev
A. P. Karpinsky Russian Geological Research Institute (Karpinsky Institute)
Russian Federation

Leontiev Vasiliy Ivanovich – Candidate of Geological and Mineralogical Sciences, Deputy Director of the MPI Center

74 Sredny Pr., St. Petersburg, 199106