Gasgeochemical indicators seismic activity

• Published in: E3S Web of Conferences
• Main Author: Obzhirov Anatoly
• Format: Article in Journal/Newspaper
• Language: English; French
• Published: EDP Sciences 2017
• Subjects: geo; envir; Okhotsk; okhotsk sea
• Online Access: https://doi.org/10.1051/e3sconf/20172003003; https://doaj.org/article/fbfad42ac4f54c6a8dfe134b1d9fc4c8

Laboratory of Gasgeochemistry of POI FEB RAS is studying gas distribution in lithosphere, hydrosphere and atmosphere from 1977 years. Method consist is sampling from its in expedition, take gas from samples of sediment, water and atmosphere to use method degassing and analysis gas in chromatograph, to measure CH4, C2-C4, O2, N2, H2, He and some time Rn. Gas is using like indicators to search oil-gas deposits, gas hydrate, mapping zones faults, to determine seismic activity, to calculate green house gas (CH4, CO2). The next geological, geophysics and hydro-acoustics characteristics assist which help to explain to form methane bubbles fluxes and gas hydrate in the Okhotsk Sea. The methane fluxes are mostly located in the zones faults and it increase in period seismic activity.