Session Sub-categoryBiogeosciences & Geosphere-Biosphere Interactions(BG)
Session IDB-BG01
TitleGas hydrates as potential habitats in our solar system and beyond
Short TitleGas hydrates
Main Convener NameJennifer B Glass
AffiliationGeorgia Institute of Technology Main Campus
Co-Convener 1NameYoshinori Takano
AffiliationJapan Agency for Marine-Earth Science and Technology (JAMSTEC)
Co-Convener 2NameMegan Elwood Madden
AffiliationUniversity of Oklahoma
Session LanguageE
ScopeAt moderate-to-high pressures and low temperatures, water molecules form pseudo-crystalline cages (clathrates; Latin clatratus) encasing guest gas molecules, most commonly methane, to form solid clathrate phases, also commonly referred to as gas hydrates. Gas hydrates are likely widespread in our solar system: on icy moons, comets, and the Martian subsurface. On Earth, gas hydrates (particularly those with methane gas) occur beneath permafrost and in sediments underlying continental shelves, where they support vast chemosynthetic communities at cold seeps. Habitability and biosignatures of microbial activity in gas hydrates are active fields of study with relevance for future missions to planets and icy moons that may harbor hydrates (e.g. Mars, Europa, Titan, and Enceladus). This session seeks to bring together diverse scientists studying any aspect of gas hydrates: from their structure, stability, and planetary distribution, to the composition and function of their microbial communities.
Presentation FormatOral and Poster presentation