A new resource may help match artifacts with their original stone sources—“a really a niche part of archaeology that requires geological expertise.”
geochemistry
Posted inNews
Iodine-Laden Desert Dust Is Eating at Ozone Pollution
In a happy accident, scientists found a potential solution to an atmospheric chemistry mystery. Their findings could be a missing piece in the iodine cycle and in atmospheric models.
Posted inNews
Innovators Tackle Toxic “Forever Chemicals”
New technologies seek to remove and destroy dangerous PFAS chemicals in contaminated water.
Posted inNews
Oxygen Levels Measured in a Lung of the Deep Ocean
The Labrador Sea “inhales” oxygen and supplies it to deep-sea life across the world. But its breath could be threatened by climate change.
Posted inNews
Tecnología de punta, serendipia y los secretos del Stonehenge
El primer análisis exhaustivo de lo qué están hechas las piedras sarsen se produjo con nueva tecnología y buena suerte a la antigua.
Posted inNews
Good News: Rocks Crack Under Pressure from Mineral CO2 Storage
When carbon mineralizes in stone, each new fracture exposes more surfaces that can react with and trap CO2, enhancing a rock’s storage capacity.
Posted inNews
A New Explanation for Organics on a Mars Rock That Fell to Earth
Organic molecules on a Martian meteorite have fueled nearly 30 years of scientific debate. New evidence suggests they were formed by Martian processes, offering more support for a once habitable environment on the Red Planet.
Posted inEditors' Highlights
What Conditions Accompanied the Late Ordovician Mass Extinction?
The second-largest mass extinction in Earth’s history took place in a period of stresses from non-sulfidic anoxia in shelf areas, together with glacioeustatic sea-level change and climatic cooling.
Posted inResearch Spotlights
Diurnal Oxidation for Manganese Minerals in the Arctic Ocean
The relative abundance of different oxidation states for this important micronutrient varies on the basis of how much available sunlight there is.
Posted inNews
Community Input Drives Superfund Research
Researchers identified geochemical tracers for lead and investigated Oklahomans’ concerns at the Tar Creek Superfund site.