Geokhimiya, 2002, V 40, N 11, November.

Thermodynamic Parameters of Generation of Meymechites and Alkaline Picrites
in the Maymecha-Kotui Province: Evidence from Melt Inclusions
I. D. Ryabchikov, I. P. Solovova, L. N. Kogarko,
G. P. Bray, Th. Ntaflos, and S. G. Simakin 
p. 1031  

Isotopic Geochronology of Quaternary Volcanic Eruptions
in the Greater Caucasus
I. V. Chernyshev, V. A. Lebedev, S. N. Bubnov,
M. M. Arakelyants, and Yu. V. Gol'tsman 
p. 1042  

On the Kinetics of Natural Leaching of 238U and 234U from Rocks and Minerals
R. V. Bogdanov, Yu. F. Batrakov, E. V. Puchkova, and A. S. Sergeev 
p. 1056  

Experimental Determination of the Redox Potential of Rock-Water Systems.
3. Basalt-Water and Dunite-Water Systems at 400°C, 1 kbar. General Conclusions
B. N. Ryzhenko and N. I. Kovalenko 
p. 1066  

Metallurgical Slags with Spinifex Textures
A. V. Tatarinov 
p. 1075  

Quantifying the Alteration of Sulfidic Wastes from the Mining Industry
A. M. Plyusnin, V. I. Gunin, and N. V. Belomestnova† 
p. 1083  

Organic Matter as a Source of Gold at Deposits in Central Aldan
M. V. Popova, E. A. Razvozzhaeva, A. Yu. Mitrofanova, and L. P. Plotnikova 
p. 1094  

The Geochemistry of Biogenic Sediments and Phosphatic Micronodules
in the Namibian Shelf
G. N. Baturin and I. G. Yushina 
p. 1102  

Short Communications

Chemical Composition, Trace Elements, and Volatile Components
of Melt Inclusions in Minerals from Andesites of the Avachinskii Volcano, 
Kamchatka
M. L. Tolstykh, A. D. Babansky, V. B. Naumov, L. I. Bazanova, and N. N. Kononkova 
p. 1112  

Levels and Dynamics of Fissionable Radionuclide Accumulation in Tree Rings
L. P. Rikhvanov, T. A. Arkhangel'skaya, and V. D. Nesvetailo 
p. 1120