1. Petroleum generation, extraction and migration and abiogenic synthesis in hydrothermal systems.- 2. Thermal cracking of petroleum.- 3. Thermochemical reactions of middle rank coals.- 4. Thermal transformation of soil organic matter by natural fires and laboratory-controlled heatings.- 5. High temperature pyroly sis of oil shales.- 6. Formation of young kerogen: protein-based melanoidins hypothesis and heating experiments under mild conditions.- 7. Natural and laboratory-simulated geothermal and geochemical processes.- 8. Differential thermal analysis (DTA) in the study of thermal reactions of organo-clay complexes.- 9. The use of thermal analytical methods in organic geochemistry.- 10. On the dissipation of thermal and chemical energies on the early Earth.