Silica Transport and Growth of High-Temperature Crystalline Quartz in Supercritical Aqueous Fluids V. S. Balitsky, L. V. Balitskaya, H. Ivasaki, and F. Ivasaki p. 391 Zinc Geochemistry at the Haemmerlein Skarn–Greisen Tin Deposit, Erzgebirge, Germany B. I. Malyshev, O. F. Mironova, V. B. Naumov, N. I. Savel’eva, A. N. Salazkin, and A. G. Volosov p. 397 Chemical Evolution of Pyroxenes in Urals Gabbro: The Role of Pressure, Temperature, Oxygen Fugacity, and Rock Composition A. A. Efimov, T. A. Potapova, and D. G. Berlimble p. 404 Postcrystallization Alteration of Gold–Quartz Aggregates under Hydrothermal Conditions: Experimental Data M. S. Sakharova†, S. K. Ryakhovskaya, and A. G. Turchkova p. 423 Gas–Liquid Phase Transition Volumes Changes in the CO2–CH4–N2 System in Relation to Thermobarogeochemistry Problems V. G. Sverdlova, G. Yu. Shvedenkov, A. A. Tomilenko, A. V. Savinov, and N. A. Gibsher p. 430 Experimental Investigation of Platinum Concentration by Bitumen at 200–400°C and 1 kbar L. P. Plyusnina and T. V. Kuz’mina p. 441 Organic Geochemistry of the Deep-Seated Triassic Sedimentary–Volcanogenic Deposits of the Western Siberian Plate I. D. Polyakova and G. Ch. Borukaev p. 450 Chlorine Dissolution in Fluid-rich Granitic Melts: The Effect of Calcium Addition V. Yu. Chevychelov p. 456Short Communications
The Nature of Ore-forming Solutions at Au–Ag Deposits in the United States as Deduced from Isotopic Data V. I. Ustinov and M. M. Konstantinov p. 488
In Memoriam
Malinin Sergei Dmitrievich (1929–1998) p. 491