Science Highlights

Some recent GEOTRACES science findings are reported below.

New trace metal data in the Seas of Japan and Okhotsk

Nakaguchi and colleagues realized full-depth and section distributions of traces metals collected from the Seas of Japan and Okhotsk.


The Arctic Ocean is a net source of micronutrients toward the North Atlantic through the gateway of Fram Strait

Krisch and colleagues present a flux budget for micronutrient exchange between the Arctic and the North Atlantic Ocean.


Confrontation of two models to constrain the hydrothermal iron contribution to the Southern Ocean export production

Tagliabue and his co-workers compare the hydrothermal dissolved iron simulated by both models.


A better insight into parameters that control particle flux in the ocean

Xiang and coworkers compiled full ocean-depth size-fractionated particle data from 3 recent U.S. GEOTRACES cruises.


Assessment of deep-sea mining on Ocean health

Artigue and co-workers conducted a study to constrain how lithium and strontium from hydrothermal vents are dispersed in the ocean.


North African dust is an important (but not dominant) source of iron to the Gulf of Mexico

Hayes and colleagues have combined data to estimate how important North African dust could be as a source of iron to the Gulf of Mexico.


Nickel bioactive role in the oceans assessed by its isotopes

Lemaitre and her colleagues realized the simultaneous analysis of the dissolved nickel isotopes and concentrations in the North Atlantic.


After the Mediterranean Sea one, don’t miss the Arctic present-day total mercury mass balance!

They provide an updated mass balance of the Arctic land and ocean mercury cycle.

What controls the barium distribution in the Arctic Ocean?

They synthesized what controls the barium distribution in the Arctic Ocean.