Physics
Scientific paper
Oct 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1677c&link_type=abstract
EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1677
Physics
Scientific paper
The origin of Titan's atmospheric methane and of the volatiles measured in Enceladus' south pole plumes remain, to this day, unresolved. Clathrate hydrates are among the favored deep-seated reservoir candidates. However, the conditions allowing for their dissociation and the release of volatiles to the atmosphere (Titan) or the plumes (Enceladus) are still poorly constrained. This is mainly because there is a lack of knowledge on the stability of mixed clathrate hydrates in presence of anti-freeze agents such as ammonia. We present two new high-pressure systems, a high-pressure cryogenic calorimeter and a fluid pressure optical cell, currently being developed at JPL and the Laboratoire de Planétologie et Géodynamique de Nantes, respectively, that are designed to address this deficiency in the literature. Preliminary results from these studies will be shown.
Barmatz M. B.
Choukroun Mathieu
Grasset Olivier
Hodyss R. P.
Le Menn Erwan
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