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Diagenetic models of interstitial nitrate profiles in deep sea suboxic sediments 1
Author(s) -
Goloway Frances,
Bender Michael
Publication year - 1982
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1982.27.4.0624
Subject(s) - denitrification , nitrate , benthic zone , nitrification , diagenesis , environmental chemistry , bioturbation , pelagic zone , environmental science , organic matter , chemistry , geology , oceanography , mineralogy , sediment , nitrogen , geomorphology , organic chemistry
Quantitative models are developed to describe three different profiles of nitrate observed in the porewater of pelagic sediments: nitrification only is observed; a surficial zone of nitrification is underlain by a zone of denitrification; the zone of nitrification is underlain by a zone of no reaction and then a zone of denitrification. Oxygen consumption and nitrate re duction are assumed to be first‐order processes. by fitting the models to observed [NO 3 − ] profiles, we have estimated benthic nitrate and oxygen fluxes, denitrification rates, first‐order rates constants for O 2 , organic matter, and NO 3 − consumption, and the stoichiometric ratio d [NO 3 − ]: d [O 2 ].