A multinational research team drilled into the seafloor to see whether chemical processes in exposed shallow mantle rocks could generate nutrients to support life in the subsurface.
geochemistry
Posted inFeatures
Interpreting Mosaics of Ocean Biogeochemistry
Advances in technology and modeling capabilities are driving a surge in progress in our understanding of how ocean ecosystems mix and mingle on medium to small scales.
Posted inNews
Extinct Megatoothed Shark May Have Been Warm-Blooded
Preliminary results from a recent study may begin to shed light on why megalodons died out before the most recent ice age.
Posted inResearch Spotlights
Why Trace Metals Cling to the Ocean’s Skin
Metals within the millimeter-thick sea surface microlayer may impact ocean health and climate.
Posted inGeoFIZZ
A Rock Guide to Fireworks
Before a firework was red, it was a strontium salt waiting for its moment.
Posted inNews
Fresh Take on a Gold Treasure’s Origins Using Geochemistry
Blending geoscience and archaeology, researchers apply a new technique to pinpoint where ancient and unique gold artifacts were crafted.
Posted inEditors' Vox
Multiple Choices Exist for Changing Ocean Oxygen Concentrations
Widespread declines in ocean oxygen concentrations are now being reported with authors offering quite different explanations. Which ones are correct?
Posted inResearch Spotlights
Life in the Hyporheic Zone
Defining the chemical relationships between water, sediment, and organisms that thrive beneath riverbeds.
Posted inEditors' Vox
Radiocarbon in the Oceans
Offsets in radiocarbon concentration within the ocean or between the ocean and the atmosphere are particularly useful proxies for a variety of studies.
Posted inEditors' Highlights
Unraveling Hemispheric Ocean Nitrate Supply Pathways
Subsurface measurements of nitrogen and oxygen isotope ratios in nitrate reveal a predominantly southern hemisphere supply of nitrate to the equatorial Pacific.