Isotopic constraints on the pre-industrial oceanic nitrogen budget
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چکیده
منابع مشابه
Isotopic constraints on the pre-industrial oceanic nitrogen budget
The size of the bioavailable (i.e., “fixed”) nitrogen inventory in the ocean influences global marine productivity and the biological carbon pump. Despite its importance, the pre-industrial rates for the major source and sink terms of the oceanic fixed nitrogen budget, N2 fixation and denitrification, respectively, are not well known. These processes leave distinguishable imprints on the ratio ...
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[1] We investigate the response of the N/N of oceanic nitrate to glacial/interglacial changes in the N budget, using a geochemical box model of the oceanic N cycle that includes N2 fixation and denitrification in the sediments and suboxic water column. This model allows us to quantify the isotopic response of different oceanic nitrate pools to deglacial increases in water column and sedimentary...
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Introduction Conclusions References
متن کاملIsotopic fingerprint of pre-industrial and anthropogenic N2O
The isotopic fingerprint of the pre-industrial and the anthropogenic N2O source T. Röckmann, J. Kaiser, and C. A. M. Brenninkmeijer Max Planck Institute for Nuclear Physics, Atmospheric Physics Division, Heidelberg, Germany Max Planck Institute for Chemistry, Air Chemistry Division, Mainz, Germany Received: 21 August 2002 – Accepted: 21 October 2002 – Published: 13 November 2002 Correspondence ...
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The Chenaillet Ophiolite is one of the best-preserved remnants of the Piemont-Liguria oceanic basin, a branch of the Central Atlantic that opened during the separation of Adria/Africa from Europe. Despite numerous studies of structure, petrology, geochemistry and isotope geochronology, the timing and genesis of various magmatic rocks within the Chenaillet Ophiolite are still controversial. We p...
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ژورنال
عنوان ژورنال: Biogeosciences
سال: 2013
ISSN: 1726-4189
DOI: 10.5194/bg-10-5889-2013