Environmental Aspects of Hydrates

Other natural hydrates have been suggested during the past few decades. Miller (1974) concluded that hydrates of carbon dioxide were on Mars, and Pang et al. (1983) indicated that the E rings of Saturn were hydrates. Delsemme and Miller (1970), Mendis (1974), and Makogon (1987) suggested that hydrates exist in comets in particular, carbon dioxide and water in comets were combined in the form of hydrates. 

Shoji and Langway (1982) described air hydrates found with ice cores off Greenland, while Tailleur and Bowsher (1981) indicated the presence of hydrates associated with coals in permafrost regions. Hondoh (1996) suggested that deep ice hydrates of air in Antarctica can be used to predict the Earth s ancient climate. Such hydrates are formed from air imbedded in snowfall and have been buried at pressure for hundreds of thousands of years. Rose and Pfannkuch (1982) have considered the applicability of the Deep Gas Hypothesis to the origin of methane in hydrates. 

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