Geochemistry International (Geokhimiya), 1998, V 36, N 12.

Geochemical and Isotopic Characteristics and Magma Sources
of the Early Cretaceous Trachybasalts of the Gobi–Altai Rift Zone: An
Example of Grabens in the Arts-Bogdo Range
V. S. Samoilov , V. V. Yarmolyuk , V. I. Kovalenko , V. G. Ivanov , 
and Yu. A. Pokhol'chenko 
p. 1087  

Olivine Melilitites of the Kimberlite and Carbonatite Associations
in Dikes and Diatremes of Eastern Siberia
E. A. Chernysheva and S. I. Kostrovitskii 
p. 1100  

Stratification in Cooled Planets
A. I. Shapkin and Yu. I. Sidorov 
p. 1109  

The Nature of Anomalous Ba Contents in Riphean Granitoids
of the Island-Arc Type in Eastern Siberia
A. A. Tsygankov and T. T. Vrublevskaya 
p. 1123  

Rare-Earth and Other Trace Elements in Rocks from W-bearing Magmatic
Complexes of the Southern Tien Shan
 S. G. Solov'ev 
p. 1133  

Trace Element Composition of Sulfide Inclusions in Garnets
from the Udachnaya Kimberlite Pipe, Yakutia
Yu. P. Barashkov, W. L. Griffin, and S. B. Tel'nikova 
p. 1147
  
Electrochemical Transport of Metal Ions through Dispersed Rocks:
An Experimental Study
V. A. Korolev and M. A. Nekrasova 
p. 1154  

Cesium-137 Accumulation Behavior of Bottom Surface Sediments of the Barents
Sea
E. M. Leonova, A. D. Krasnyuk, and V. I. Petrova 
p. 1161
  
Peculiar Properties of Film Solutions and Their Role in Geochemical
Processes
A. B. Ptitsyn 
p. 1168  


Short Communications


Platinum Mineralization of the Nizhnii Tagil Massif: New Data
on the Oxygen Isotopic Composition of the Olivine and Chrome Spinel
A. V. Ukhanov, E. V. Anikina, and V. I. Ustinov 
p. 1174  

Low-Temperature Heat Capacity and Thermodynamic Functions of Laumontite
I. E. Paukov and B. A. Fursenko 
p. 1177  

Modeling of the Macrokinetics of Heterogeneous Chemical Reactions during
Fluid Percolation
M. G. Khramchenkov 
p. 1180  



Author Index to Volume 36, 1998 p. 1186

Contents of Volume 36, 1998 p. 1190