Contents

Geochemistry International

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Vol. 59, No. 3, 2021

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Amphibolites of the Stalemate Ridge and Shirshov Rise, Northwest Pacific: Indicators of the Geodynamic Regime of Metamorphism at the Convergent Plate Boundary

S. A. Silantyev, A. S. Gryaznova and V. V. Shabykova p. 213  abstract

Genetic Type and Age of Ferromanganese Sediments of the Taloi Deposit, Transbaikalia

S. I. Shkolnik, L. Z. Reznitskii, E. F. Letnikova and V. B. Khubanov p. 229  abstract

Germanium and Gallium Concentrations in Natural Melts and Fluids: Evidence from Fluid Inclusions

V. Yu. Prokofiev, V. B. Naumov, V. A. Dorofeeva and N. N. Akinfiev p. 243  abstract

Reconstruction of Middle Miocene Surma Basin as Two Arcs Derived Sedimentary Model: Evidence from Provenance, Source Rock Weathering and Paleo-Environmental Conditions

Bubul Bharali, M. Faruque Hussain, Pradip Borgohain, Devojit Bezbaruah, V. Vanthangliana, Raghupratim Rakshit and Parakh Protim Phukan p. 264  abstract

Geochemistry of Asphaltenes in Organic Matter of Low Thermal Maturity

L. S. Borisova and I. D. Timoshina p. 290  abstract

Noble Metals in Rocks of the Sarma Group: Phase Composition and Element Associations

Yu. V. Danilova, I. E. Vasil’eva, E. V. Shabanova, V. B. Savelyeva and B. S. Danilov p. 301  abstract

An Application for Thermodynamic Calculation of Au_xAg_{1 – x}-Fluid Equilibria: Super-Pure Native Gold in Woxi Au–Sb–W Deposit, Western Hunan, China

Y. Liang, J. S. Zhong, Q. M. Pei and K. Hoshino p. 314  abstract

Short Communications

Physicochemical Model of Scandium Behavior in a Weathering Profile

V. A. Kopeikin p. 328  abstract

Physicochemical and Calorimetric Study of Aluminocopiapite and Thermodynamic Properties of Copiapite-Group Minerals

L. P. Ogorodova, Yu. D. Gritsenko, M. F. Vigasina, D. A. Kosova, L. V. Melchakova, D. A. Ksenofontov and S. K. Dedushenko p. 333  abstract

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