Constraints on oceanic N balance/imbalance from sedimentary 15N records

• Published in: Biogeosciences Vol. 4; no. 1; pp. 75 - 86
• Main Author: Altabet, M. A.
• Format: Journal Article
• Language: English
• Published: European Geosciences Union 23.01.2007; Copernicus Publications
• Subjects: Astrophysics; Continental interfaces, environment; Cosmology and Extra-Galactic Astrophysics; Earth Sciences; Ocean, Atmosphere; Physics; Sciences of the Universe

According to current best estimates, the modern ocean's N cycle is in severe deficit. N isotope budgeting provides an independent geochemical constraint in this regard as well as the only means for past reconstruction. Overall, it is the relative proportion of N2 fixation consumed by water colu...