1. Sulfur Isotope Fractionation During Sulfide Generation in the Hydrothermal Submarine Systems: The Case of Logatchev, Krasnov, and Rainbow Hydrothermal Fields, Mid-Atlantic Ridge

   • E. O. Dubinina
   • N. S. Bortnikov
   • S. A. Kossova

   DEDICATED TO THE 90TH ANNIVERSARY OF IGEM RAS 10 November 2020 Pages: 351 - 371

   

2. Research of the Uranium, Niobium, and Tantalum Behavior in the Granite Melt–Chloride Fluid System at 750°C and 1000 Bar

   • A. F. Redkin
   • V. I. Velichkin

   DEDICATED TO THE 90TH ANNIVERSARY OF IGEM RAS 10 November 2020 Pages: 372 - 382

   

3. Gold and Silver Minerals in Sulfide Ore

   • G. A. Palyanova

   OriginalPaper 10 November 2020 Pages: 383 - 406

   

4. Evolution of the Vagran Gold-Bearing Placer Cluster (Northern Urals) and Prospects for Revealing Bedrock Mineralization

   • A. V. Lalomov
   • V. A. Naumov
   • L. O. Magazina

   OriginalPaper 10 November 2020 Pages: 407 - 418

   

5. The Dudica Epithermal Cu–Au Deposit (Republic of North Macedonia)

   • G. Tasev
   • D. Serafimovski
   • T. Serafimovski

   OriginalPaper 10 November 2020 Pages: 419 - 431

   

6. Formation Environments of Metasomatites and Ores of the Epithermal Gold–silver Deposits

   • I. N. Kigai

   SHORT COMMUNICATIONS 10 November 2020 Pages: 432 - 437