Pros and cons of carbon, nitrogen and silicon as tracers of modern and paleo-productivity
Farmer and colleagues review the geochemical proxies based upon sedimentary isotope ratios of three abundant biologically mediated elements.
Productivity
Pros and cons of nine bioactive trace elements as tracers of modern and paleo-productivity
Horner and co-authors assess whether nine bioactive trace metals and their isotopes can be used as paleo-productivity proxies.
Has the role of atmospheric dust as a control on productivity in oligotrophic regions been overestimated?
Dust particles settling into the surface of open ocean environments are for years assumed to provide nutrients to these distant nutrient-limited areas. Torfstein and Kienast (2018, see reference below) present […]