The Arctic Ocean fixed nitrogen cycle in past climates: Insights from foraminifer-bound nitrogen isotopes
Jesse R Farmer1, Daniel Mikhail Sigman1, Julie Granger2 and François Fripiat3, (1)Princeton University, Princeton, NJ, United States, (2)University of Connecticut, Department of Marine Sciences, Groton, CT, United States, (3)Max Planck Institute for Chemistry, Mainz, Germany
