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

Abstract:

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 HNO 3 concentrations are elevated above background to an even greater extent (≤50 μmol·m-3). We estimate the production efficienc...

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Publication status:
Published

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Publisher copy:
10.1130/G20679.1

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Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Journal:
GEOLOGY
Volume:
32
Issue:
10
Pages:
905-908
Publication date:
2004-10-05
DOI:
ISSN:
0091-7613
URN:
uuid:04afef3f-d29e-4ed3-ace3-b544b0fea3d4
Source identifiers:
165011
Local pid:
pubs:165011

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