Contents

Geochemistry International

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Vol. 63, No. 4, 2025

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Different Types of CaSiO₃ in the Earth’s Mantle and Its Geochemical Heterogeneity: the Juina Area in Brazil as an Example

F. V. Kaminsky, and Yu. A. Kostitsyn p. 295  abstract

Distribution of Hydrocarbon Biomarkers with Depth in Marine Sediments in the Area of the Linear Depression of the West Kara Stage

V. S. Sevastyanov, V. S. Fedulov, V. Yu. Fedulova, R. H. Dzhenloda, N. V. Dushenko, and S. A. Voropaev p. 307  abstract

Humification of the Organic Matter in the Surface Bottom Sediments of the East Siberian Sea

A. A. Mariash, K. I. Aksentov, and M. V. Ivanov p. 321  abstract

A New Reaction Controlling the Composition of Oils: Hydrogenation of Aromatic Hydrocarbons

M. B. Smirnov, and N. A. Vanyukova p. 332  abstract

Elemental Composition and Sources of Urban Dust of a Large Industrial City (Krasnoyarsk, Russia)

A. I. Ivaneev, A. S. Brzhezinskiy, V. K. Karandashev, M. S. Ermolin, and P. S. Fedotov p. 341  abstract

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