Black smokers, the hottest submarine hot springs, can reach 518- 716 F (270-380 C). The super-hot water laced with hydrogen sulfide and other minerals spews out of cracks in the earth's crust §. photo NOAA
We were dancing off the walls . . . it was a discovery cruise . . . like Columbus." John Edmond, geochemist, on the cruise that first found hydrothermal vents
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