Geology of Ore Deposits, 2016, V 58, N 5.

Oka Ore District of the Eastern Sayan: Geology, 
Structural–Metallogenic Zonation, Genetic Types 
of Ore Deposits, Their Geodynamic Formation 
Conditions, and Outlook for Development
I. V. Gordienko, P. A. Roshchektaev and 
D. V. Gorokhovsky 
p. 361  

Devonian Ultramafic Lamprophyre in the 
Irkineeva–Chadobets Trough in the 
Southwest of the Siberian Platform: 
Age, Composition, and Implications 
for Diamond Potential Prediction
A. V. Kargin, A. A. Nosova, A. V. Postnikov,
 A. V. Chugaev, O. V. Postnikova, 
L. P. Popova, V. V. Poshibaev, 
L. V. Sazonova, A. Ya. Dokuchaev 
and M. D. Smirnova 
p. 383  

Geology and Mineralogy of the Alakha
Spodumene Granite Porphyry Deposit, 
Gorny Altai, Russia
I. Yu. Annikova, A. G. Vladimirov, 
S. Z. Smirnov and O. A. Gavryushkina 
p. 404  

Formation Conditions of High-Grade 
Gold–Silver Ore of Epithermal 
Tikhoe Deposit, Russian Northeast
A. V. Volkov, E. E. Kolova, N. E. Savva, 
A. A. Sidorov, V. Yu. Prokof’ev and 
A. A. Ali 
p. 427  

Short Communications

Wall-Rock Alteration of Biotite 
Hornfels at the Tyrnyauz Deposit, Russia
E. N. Gramenitskiy 
p. 442