Contents

Geochemistry International

Vol. 56, No. 2, 2018

A simultaneous English language translation of this journal is available from Pleiades Publishing, Ltd.
Distributed worldwide by Springer. Geochemistry International ISSN 0016-7029.

Age of Plutonic Rocks from the Vema Fracture Zone (Central Atlantic) and Nature of Their Mantle Sources

Yu. A. Kostitsyn, S. A. Silantyev, M. O. Anosova, V. V. Shabykova and S. G. Skolotnev p. 89  abstract

Early Stage in the Evolution of the Paleoasian Ocean at the Western Margin of the Siberian Craton: Geochemical and Geochronological Evidence

I. I. Likhanov and S. V. Zinoviev p. 111  abstract

SPINMELT-2.0: Simulation of Spinel–Melt Equilibrium in Basaltic Systems under Pressures up to 15 Kbar: II. Description of the Program Package, the Topology of the Cr-spinel–Melt Model System, and Petrological Implications

G. S. Nikolaev, A. A. Ariskin and G. S. Barmina p. 125  abstract

Silica Distribution in the System Quartz–Water–Vapor Depending on the Temperature Gradient

V. A. Alekseyev and L. S. Medvedeva p. 136  abstract

Interaction of Titanium Minerals and Their Melts with Diamond-Forming Media (Experiments at 7–8 GPa)

Yu. A. Litvin, A. V. Bovkun and V. K. Garanin p. 148  abstract

Characteristics of Sources of Oils of Romashkino Field by Composition of Saturated and Aromatic Biomarkers

M. B. Smirnov and E. N. Poludetkina p. 162  abstract

Diagenesis of Organic Matter in the Top Layer of the Sediments of the Peter the Great Bay in Hypoxia Locations

P. Ya. Tishchenko, Yu. A. Barabanshchikov, T. I. Volkova, A. A. Marjash, T. A. Mikhailik, G. Yu. Pavlova, S. G. Sagalaev, P. P. Tishchenko, N. D. Khodorenko, E. M. Shkirnikova and M. G. Shvetsova p. 171  abstract

Chemical Fractionation of Aluminium in the Sediments of El-Burullus Lagoon of Nile Delta, Egypt

Samir M. Nasr, Mohamed A. Okbah, Wafaa I. El-Anany and Naglaa F. Soliman p. 182  abstract

Short Communications

Rare-Earth Elements in the Atmospheric Precipitation of the City of Blagoveshchensk

V. I. Radomskaya, D. V. Yusupov and L. M. Pavlova p. 189  abstract