Maayan Yehudai

Nd isotopes as a paleocirculation tracer: consideration of sedimentary context and assessment through a north-south Atlantic transect

Authigenic neodymium (Nd) isotope ratios have been extensively used over the past two decades to reconstruct past changes in the global ocean circulation. Nevertheless, their effectiveness as a water mass tracer is currently strongly disputed based on the potential for modificati...

Reduced N2 fixation in the tropical Atlantic Ocean during the warm late Pliocene

Abstract Water column denitrification, a major oceanic nitrogen (N) sink, decreased under past warmer-than-present climates, but the response of N 2 fixation, the main oceanic N source, remains unresolved. Here we address this gap using foraminifera-bound N isotope records from t...