Volcanic source for fixed nitrogen in the early Earth's atmosphere

Tamsin Mather, DM Pyle, Andrew Allen

    Research output: Contribution to journalArticle

    59 Citations (Scopus)


    Hot volcanic vents promote the thermal fixation of atmospheric N-2 into biologically available forms. The importance of this process for the global nitrogen cycle is poorly understood. At Masaya volcano, Nicaragua, NO and NO2 are intimately associated with volcanic aerosol, such that NOx, levels reach as much as an order of magnitude above local background. In-plume HNO3 concentrations are elevated above background to an even greater extent (
    Original languageEnglish
    Pages (from-to)905-908
    Number of pages4
    Publication statusPublished - 1 Jan 2004


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