Geochemistry International, 2002, V 40, N 6, June.

The Age of the Kyanite-Sillimanite Metamorphism 
of the Southern Chuya Complex, Gornyi Altai: U-Pb Isotopic Dating of Zircon 
A. V. Plotnikov, E. V. Bibikova, A. V. Titov, N. N. Kruk, and T. V. Gracheva 
p. 521 

Geochemistry of Volatile Components during Metamorphic 
and Migmatization Processes. Part 2. Migmatized Rocks
of the Ol'khon Metamorphic Complex, Western Baikal Area 
T. P. Gantimurova, V. A. Makrygina, Z. I. Petrova, and V. Yu. Prokof'ev 
p. 531 
  
Major- and Trace-Element Criteria in Searches for Homologues
of Archean Rocks from the Kola Superdeep Borehole (SG-3)
at the Surface: Methodological Approach 
N. E. Kozlov, E. V. Martynov, N. E. Kozlova, and A. A. Ivanov 
p. 541 

Magmatism in the Central Part of the Bransfield Strait Spreading Zone, Southern 
Ocean 
N. M. Sushchevskaya, G. B. Udintsev, B. V. Belyatskii, 
T. I. Tsekhonya, and N. A. Kurentsova 
p. 551 

Percolation of Hydrothermal Fluids through the Rocks Hosting
the Iultin Deposit, Chukot Peninsula: Evidence  from the Oxygen Isotopic 
Composition and Rock Permeability 
M. Yu. Spasennykh, V. M. Shmonov, T. M. Sushchevskaya, and A. V. Ignat'ev 
p. 564 

Endogenic Orthoborates in Europe: Genesis and Composition 
S. M. Aleksandrov and M. A. Troneva 
p. 576 

Synthetic NaF-Bearing Fluid Inclusions 
Z. A. Kotelnikova and A. R. Kotelnikov 
p. 594 

Sedimentary Fractionation of Genetically Different Hydrocarbons in the Baltic 
Sea 
I. A. Nemirovskaya 
p. 601 

Calculation of the Constants of Ion-Exchange Strontium-90 Sorption on Clay 
Minerals 
A. N. Dunaeva 
p. 608 

Short Communications 

Experimental Estimation of Oxygen Isotope Fractionation between Zircon 
and H2O at 800-1200°C: Application to Oxygen Geothermometry 
D. P. Krylov, V. N. Zagnitko, and I. P. Lugovaya 
p. 618 

Thermodynamic Properties of Primary Leonhardite within a Temperature Range of 
6-309 K 
I. E. Paukov, I. A. Belitskii, Yu. A. Kovalevskaya, and B. A. Fursenko 
p. 621