Hydrothermal Germanium Over the Southern East Pacific Rise

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Science  03 Jan 1986:
Vol. 231, Issue 4733, pp. 43-45
DOI: 10.1126/science.231.4733.43


Germanium enrichment in the oceanic water column above the southern axis of the East Pacific Rise results from hydrothermal solutions emanating from hot springs along the rise crest. This plume signature provides a new oceanic tracer of reactions between seawater and sea floor basalts during hydrothermal alteration. In contrast to the sharp plumes of 3He and manganese, the germanium plume is broad and diffuse, suggesting the existence of pervasive venting of low-temperature solutions off the ridge axis.

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