Geology of Ore Deposits, 2014, V 56, N 5.

Fractionation Factor of 238U and 235U Isotopes 
in the Process of Hydrothermal Pitchblende Formation: 
A Numerical Estimate  
I. V. Chernyshev, E. O. Dubinina, and V. N. Golubev 
p. 315   
Silver?Cobalt Mineralization in the Upper
Seymchan Ore Cluster, Northeastern Russia  
N. A. Goryachev, G. N. Gamyanin, 
V. Yu. Prokof?ev, N. E. Savva, 
T. A. Velivetskaya, and A. V. Ignat?ev 
p. 322   

Towards the Question of the Movement 
of Hydrothermal Solutions: The Case 
of the Schlema?Alberoda Vein Deposit  
G. B. Naumov, B. P. Vlasov, and 
O. F. Mironova 
p. 346   
Hydrothermal Metasomatic Alteration 
of Carbonate Bottom Sediments in the Ashadze-1
Field (13 N Mid-Atlantic Ridge)  
I. F. Gablina, E. A. Popova, 
T. A. Sadchikova, A. T. Savichev, 
N. V. Gor?kova, N. S. Os?kina, and 
T. A. Khusid 
p. 357   
Manganese Deposits in Northeastern 
European Russia and the Urals: Isotope Geochemistry, 
Genesis, and Evolution of Ore Formation  
V. N. Kuleshov, A. I. Brusnitsyn, and E. V. Starikova 
p. 380   
The Formation of Low-Temperature 
Sedimentary Pyrite and Its Relationship
with Biologically-Induced Processes  
B. Cavalazzi, A. Agangi, R. Barbieri, 
F. Franchi, and G. Gasparotto