Contents

Geochemistry International

Vol. 62, No. 4, 2024

Platinum Group Element Geochemistry in the Ocean

E. D. Berezhnaya and A. V. Dubinin p. 327  abstract

Deformation Microstructure, Metallic Iron, and Inclusions of Hollow Negative Crystals in Olivine from the Seymchan Pallasite: Evidence of Fe2+ Solid-State Reduction

N. R. Khisina, D. D. Badyukov, K. A. Lorenz, Yu. N. Palyanov, I. N. Kupriyanov and B. B. Shkursky p. 344  abstract

Formation of Richterite in the Enstatite–Diopside System in the Presence of K2CO3–Na2CO3–CO2–H2O Fluid: Implications for the Processes of Mantle Metasomatism

E. V. Limanov, V. G. Butvina, O. G. Safonov, A. V. Spivak, K. V. Van and S. S. Vorobey p. 356  abstract

Andesite Melt Crystallization under Moderate Hydrogen Pressures: An Experimental Study

E. S. Persikov, P. G. Bukhtiyarov, O. Y. Shaposhnikova, L. Ya. Aranovich and A. N. Nekrasov p. 366  abstract

Features of Loparite Dissolution in Aluminosilicate Melts (Experimental Investigation)

N. I. Suk, A. R. Kotelnikov and A. A. Viryus p. 372  abstract

Roméite Solubility in the Fluid Immiscibility Region of the NaF–H2O System at 800°C, 200 MPa

A. F. Redkin, N. P. Kotova, Yu. B. Shapovalov and A. N. Nekrasov p. 384  abstract

Effect of pH, CO2, and Organic Ligand on the Kinetics of Talc and Lizardite Dissolution

O. N. Karaseva, L. Z. Lakshtanov, D. A. Khanin and A. S. Proskuryakova p. 393  abstract

Geochemical Characteristics of the Upper Permian Shales in the Central Nanpanjiang Basin: Implications for Paleoenvironment Conditions

Lijun Shen, Yifan Gu, Zhihong Wei, Dongfeng Hu, Ruobing Liu, Yuqiang Jiang and Yonghong Fu p. 403  abstract

Organic Matter Source Traced by n-Alkane Records Derived from Sediments of Barkol Lake in Eastern Xinjiang (NW China) and Its Response to Moisture Variability in the Past 8800 Years

Zhi Wang, Wei Zhong, Xiaojun Wang, Yingyi Du, Tianhang Li, Jibin Xue and Mingying Quan p. 419  abstract

Effect of Atmospheric Circulation on the Seasonal Dynamics of the Chemical Composition of the Snow Cover in the Pechora–Ilych Reserve

M. I. Vasilevich and N. S. Smirnov p. 434  abstract