| Autor: | Bondarenko , Daria D., Ershov , Valery V. |
|---|---|
| Jazyk: | ruština |
| Rok vydání: | 2019 |
| Předmět: | |
| DOI: | 10.23683/0321-3005-2019-2-41-46 |
| Popis: | In this paper, we present the results of generalization and analysis of worldwide data on the isotope and chemical composition of gases from terrestrial mud volcanoes. In most cases, methane predominates in mud volcanic gases. The average concentration of methane is about 92.5 vol. %. The concentrations of heavy methane homologues are enough low, i.e. mud volcanic gases are dry. Nearly three-quarters of gas samples show the ethane concentration of less than 0.5 vol. %. We used data on the isotopic composition of carbon and hydrogen in methane to determine the genesis of mud volcanic gases. Methane is thermogenic origin in most mud volcanoes. The carbon isotopic composition of me-thane shows mainly the range from -60 to -25 ‰ PDB. We also see that the gases of many mud volcanoes correspond to the late stages of catagenesis. The results of our researches verify that mud volcanism is an indicator of the oil and gas prospects. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|