1. Speciation of noble metals and conditions of their concentration in massive sulfide ores of the Urals

   • I. V. Vikent’ev
   • V. P. Moloshag
   • M. A. Yudovskaya

   OriginalPaper Pages: 77 - 107

2. Mineralogy and PT formation conditions of lead-zinc ore at the Dzhimidon deposit, north Ossetia

   • E. O. Groznova
   • M. G. Dobrovol’skaya
   • M. V. Razin

   OriginalPaper Pages: 108 - 133

3. Sources of manganese deposited as oceanic Fe-Mn ore

   • E. S. Bazilevskaya

   OriginalPaper Pages: 134 - 143

4. Determination of the HCl dissociation constant at a temperature of 350°C and 200 bars of pressure by the potentiometric method using a ceramic electrode

   • V. V. Reukov
   • A. V. Zotov

   OriginalPaper Pages: 144 - 150