Methane doesn’t mean life on Mars

Slashdot has a story about a possible non-organic source for the methane they’ve detected. According to an article in Nature, Chris Oze, a geologist from Dartmouth College, Hanover, New Hampshire, “and his Dartmouth colleague Mukul Sharma calculated that [serpentinization] would consume about 80,000 tonnes of olivine each year. To spit out methane at the same rate over the planet’s 4.5-billion-year lifetime would require a global, 50-centimetre-thick layer of the mineral, spread a few kilometres below the planet’s crust. That would be just one millionth of the mass of the planet. ‘It really doesn’t take much olivine at all,’ says Oze.”

Author: benfell

David Benfell holds a Ph.D. in Human Science from Saybrook University. He earned a M.A. in Speech Communication from CSU East Bay in 2009 and has studied at California Institute of Integral Studies. He is an anarchist, a vegetarian ecofeminist, a naturist, and a Taoist.

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