Magnitude of dissociation of methane hydrate reservoir associate with climate change
Methane hydrates are found in enormous quantities along all the continental margins. The magnitude of the carbon pool locked in the methane hydrate reservoir is not known precisely, but estimates range from 103 to 106 Gt C. Methane hydrates are also of interest because of their potential role in climate change. When these marine methane hydrates begin to dissociate, the methane trapped in the methane hydrates is released into the ocean and the atmosphere. This review focuses on the dissociation mechanism of methane hydrates that are rather unique and involve a number of conditions, and presents current understanding of the effects of methane hydrate on the chemical and physical properties of seawater. We discuss past events about the dissociation of methane hydrate in the various geological periods. It will be shown how the previously mentioned sufficient flux of methane from hydrate dissociation can cause an oceanic anoxic event and a major global warming. These events maybe are occurring and will be believed to influence the climate change in the future.
methane hydrate dissociation greenhouse gas climate change
Baocong Guan Huaiyan Lei
State Key Laboratory of Marine Environmental Science,College of Oceanography and Environmental Scien State Key Laboratory of Marine Environmental Science,College of Oceanography and Environmental Scien
国际会议
北京
英文
1-6
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）