A. V. Maslov
A.N. Zavaritsky Institute of Geology and Geochemistry, Ural Branch of RAS; Institute of Geology, Ufa Scientific Centre of RAS.
Russian Federation

 Andrei V. Maslov, Doctor of Geology and Mineralogy, Corresponding Member of RAS, Head of Laboratory.  Ekaterinburg.

V. N. Podkovyrov
Institute of Precambrian Geology and Geochronology of RAS.
Russian Federation

Victor N. Podkovyrov, Doctor of Geology and Mineralogy, Head of Laboratory.

St. Petersburg.

E. Z. Gareev
Institute of Geology, Ufa Scientific Centre of RAS.
Russian Federation

Emir Z. Gareev, Candidate of Geology and Mineralogy, Senior Researcher.

Ufa.

N. D. Sergeeva
Institute of Geology, Ufa Scientific Centre of RAS.
Russian Federation

Nina D. Sergeeva, Candidate of Geology and Mineralogy, Lead Researcher.

Ufa.