Geochemistry International, 2004, V 42, N 7, June.

On the Origin of Lunar Material 
E. M. Galimov 
p. 595   

Hornblende Gabbro in the Urals: 
Types, Geochemistry, and Petrogenesis 
G. B. Fershtater, F. Bea, M. P. Montero, 
and J. Scarrow 
p. 610   

Geochemistry of Sumian Basaltic Andesites 
of Central Karelia 
S. A. Svetov, A. I. Golubev, and A. I. Svetova 
p. 630   

Fluorite as an Indicator of Internal Zoning
and Ore Potential of Rare Metal Granites 
of the Orlovskoe Tantalum Deposit, 
Eastern Transbaikalia 
O. A. Kukushkina and V. V. Matias 
p. 641   

Rare Earth Elements in Minerals, Ores, and Rocks
from Uranium Deposits of Northern Kazakhstan: 
Distribution and Genetic Implication 
S. F. Vinokurov, T. L. Krylova, A. V. Timofeev, 
and V. N. Golubev
p. 656   

Sulfur and Carbon Isotopes in the Black Smoker
Hydrothermal Vent Ecosystems of the Ural Paleoocean 
A. Yu. Lein, V. V. Maslennikov, S. P. Maslennikova, 
N. V. Ul’yanova, V. V. Zaikov, and B. Spiro 
p. 668   

Fractional Composition of Humic Acids in Soils
and 13C Distribution in Fractions 
V. V. Dobrovol’skii, L. A. Kodina, and 
L. V. Aleshchukin 
p. 682   

Short Communications 

Fluids of Mud Volcanoes in the Southern Caspian
Sedimentary Basin: Geochemistry 
and Sources in Light of New Data on the Carbon,
Hydrogen, and Oxygen Isotopic Compositions 
I. S. Guliev, D. A. Huseynov, and A. A. Feizullaev 
p. 688