The heat apparently derives from a chemical reaction between mantle rock and seawater. (discovermagazine.com)
Some scientists have proposed mixing carbon dioxide (CO2) with water and injecting it into mantle rock as a means to fight climate change. (astrobio.net)
If just one percent of the weight of mantle rock located in the transition zone is H2O, that would be equivalent to nearly three times the amount of water in our oceans, the researchers said. (sciencedaily.com)