Alchemy in the Earth's Mantle: Why subduction zones are the gold kitchens of the Earth
GEOMAR Helmholtz Centre for Ocean Research Kiel
Published: 1 April 2026
Seafloor glass samples from the Kermadec island arc reveal that multi-stage hydrous mantle melting drives gold enrichment in magmas, explaining why major gold deposits cluster at oceanic subduction zones.
Keywords: gold enrichment, mantle melting, Kermadec arc, subduction zones, marine geology, seafloor geochemistry, volcanic glass
New study reveals hidden ocean chemistry
University of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science
Published: 6 April 2026
Researchers detected hidden nitrite and thiosulfate signals in BGC-Argo float data, revealing nitrogen cycling in ocean oxygen-deficient zones is far more dynamic than previously thought.
Keywords: BGC-Argo, nitrogen cycling, ocean chemistry, oxygen-deficient zones, nitrite, thiosulfate, biogeochemistry
Ferocious Predator and Important Prey: New Barracudina Species Named for Smithsonian Biologist
NOAA Fisheries
Published: 31 March 2026
NOAA biologists described Stemonosudis dianea, a new barracudina species from the western North Atlantic. X-ray analysis revealed these deep-sea predators are cannibalistic and serve as key prey for tuna and billfish.
Keywords: barracudina, new species, deep-sea fish, taxonomy, North Atlantic, marine biodiversity, Smithsonian, Stemonosudis
