A Cooler Way to Balance the Sea's Salt Budget

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Science  30 Jul 1999:
Vol. 285, Issue 5428, pp. 657-658
DOI: 10.1126/science.285.5428.657

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Mineral-laden volcanic springs in the deep sea had seemed to explain the ocean's chemistry, but cooler springs away from the volcanoes may play a bigger role. On page 721 of this issue of Science, oceanographers present high-precision mass-spectrometry measurements tracing a plume of chemically altered seawater that includes water from warm springs kilometers away from the seething black smokers of the ridge crest.