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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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Rationale of workshop In Lake Baikal, a UNESCO World Heritage Site, numerous sites of focused methane-rich fluid emissions at deep water depths (400 – 1400m) have been discovered the last 15 years. These deep lake-bottom emissions are unique mineralogical and biological sites (gas hydrates, carbonates, rare ecosystems), but they also pose a risk for the escape into the atmosphere of this greenhouse gas and for the triggering of underwater landslides. Since 2014, a bilateral France-Russia collaboration focuses on these methane emission sites with the objective to better quantify fluxes of matter and the abundance of gas hydrates and to understand the geological control over the location of its emissions. At the workshop we try to make a state of the art on methane migration from sediments to water column, make a comparison with oceans and discuss the challenges for the future. Main themes that are discussed on the workshop are the amount of methane involved, the role of buffer systems (gas hydrates, diagenesis, microbiological activity) and the sensitivity of these systems.