1. Mud Volcanic Fluids of the Kerch–Taman Region: Geochemical Reconstructions and Regional Trends. Communication 1: Geochemical Features and Genesis of Mud-Volcanic Waters

   • V. Yu. Lavrushin
   • A. S. Aydarkozhina
   • O. L. Petrov

   OriginalPaper 17 November 2021 Pages: 461 - 486

   

2. Carbonate Sedimentology of the Upper Riphean (Neoproterozoic) Uk Formation, Southern Urals

   • S. A. Dub
   • D. V. Grazhdankin

   OriginalPaper 17 November 2021 Pages: 487 - 508

   

3. Depositional Environments and Paleogeographic Evolution during the Formation of Upper Paleozoic Terrigenous Rocks in Taimyr

   • S. B. Shishlov
   • K. A. Dubkova

   OriginalPaper 17 November 2021 Pages: 509 - 522

   

4. Fossil Coals (Gagates) from Pleistocene Sediments in Black Sea Terraces, Southeastern Crimea

   • I. E. Stukalova
   • T. A. Sadchikova
   • I. V. Latysheva

   OriginalPaper 17 November 2021 Pages: 523 - 534

   

5. Reconstruction of Sediment and Peat Accumulation Conditions Based on the Petrographic Composition of Coal in the Verkhnedneprovsk Deposit, Dnieper Brown Coal Basin

   • A. V. Ivanova
   • L. B. Zaitseva
   • V. B. Gavriltsev

   OriginalPaper 17 November 2021 Pages: 535 - 547

   

6. Silicified Woods Consist with Malachite, Azurite, and Hematite in the Middle Eocene Çekerek Formation, Tokat—Turkey

   • İlkay Kaydu Akbudak
   • Zeynel Başıbüyük
   • Meltem Gürbüz

   OriginalPaper 17 November 2021 Pages: 548 - 558

   

7. Determination of Key Beds from the Cap Rocks of Oil Reservoirs Using a Novel Method, Case Study: The Gachsaran Formation, Southwest Iran

   • Saeid Pourmorad
   • Amir Jokar
   • Shakura Jahan

   OriginalPaper 17 November 2021 Pages: 559 - 578