Geochemistry International, 2003, V 41, N 3.

Composition of Magmatic Melts from the Southern Baikal Volcanic Region:
A Study of Inclusions in Olivine from Trachybasalts
V. B. Naumov, M. V. Portnyagin, M. L. Tolstykh, and V. V. Yarmolyuk 
p. 213  

Petrochemical Evolution and Genesis of a Potassic Pyroxenite-Eclogite-Granulite 
Association: Mantle and Crustal Xenoliths in Neogene Fergusites in the Southern 
Pamirs, Tajikistan
V. S. Lutkov 
p. 224  

The Problem of Granite Genesis in Early Proterozoic Riftogenic Belts
with Reference to the Southern Pechenga Zone, Kola Peninsula
P. K. Skuf'in, T. B. Bayanova, V. F. Smolkin, E. A. Apanasevich,
and N. V. Levkovich 
p. 236  

Sm-Nd, Rb-Sr, and K-Ar Isotopic Systems under Regional Metamorphism:
Evidence from the Belomorian Belt, Kola Peninsula
V. M. Savatenkov, I. M. Morozova, and L. K. Levskii 
p. 245  

Contact Metamorphism of Quartz Veins in the Northern Portion of the Allakh-Yun' 
Group of Gold-Bearing Deposits, Yakutia, Russia: Evidence from Fluid Inclusions
N. A. Gibsher and A. A. Tomilenko 
p. 261  

Mineralogy and Geochemistry of Sulfide Ores from the Logachev-2 and Rainbow 
Fields: Similar and Distinctive Features
A. Yu. Lein, G. A. Cherkashev, A. A. Ul'yanov, N. V. Ul'yanova, T. V. Stepanova,
A. M. Sagalevich, Yu. A. Bogdanov, E. G. Gurvich, and M. P. Torokhov 
p. 271  

Speciation of Trace Elements in Brines from the Concentration Ponds of 
Exportadora de Sal, Guerrero Negro, Baja California Sur, Mexico
E. N. Shumilin, M. V. Mironenko, B. N. Ryzhenko, and M. Grajeda Mun~oz 
p. 295  

Short Communications

Solar Helium and Neon in Diamonds and Basalts of Plumes and Hot Spots:
Possible Timing and Genesis of Heterogeneity in the Lower and Upper Mantle
B. A. Blyuman 
p. 305  

Sorption-Atomic Absorption Determination of Metal Ultratraces in Marine
and River Particulate Matter
V. N. Oreshkin and G. I. Tsizin 
p. 309