Researchers observe how water vapor and liquid alter sedimentary rocks through physical and chemical processes.
geochemistry
Superlasers Shed Light on Super-Earth Mantles
By compressing iron oxide to pressures expected inside a large and rocky exoplanet, scientists discovered that such mantles could layer, mix, and flow in ways very different from those inside our planet.
The Alkalinity Trap at the Bottom of the World
Tiny microorganisms in the Southern Ocean affect the way the rest of the world’s seas respond to carbon dioxide.
The Catcher in the Ice
There are three ways to extract gases from an ice core. The cleanest one, sublimation, is getting easier.
Hurricanes Wakes Show Asymmetrical Response in Ocean Salinity
It’s well known that hurricanes can substantially impact ocean surface temperature, but a new study shows they can also induce an ocean salinity response in unexpected ways.
Martian Dust Activities Induce Electrochemistry
Amorphous materials generated from sulfur and chloride salts by electrostatic discharge in a Mars chamber suggest widespread electrical processes during dust activities.
Sinking Fish May Fast-Track Mercury Pollution to the Deep Sea
Isotopic analysis indicates that mercury found in deep-sea organisms may have an origin in carrion from near the surface.
When Did Archaic Humans Control Fire?
A familiar geochemical technique shines a new spotlight on early hominin use of fire.
La Geología y la Química Impulsan la Migración Animal en el Serengueti
Trabajo de campo en Tanzania sugiere que la química del suelo—influenciada por el vulcanismo local y la actividad tectónica—podría ayudar a determinar la migración sin precedentes de más de un millón de ñus.
Acidifying Oceans Could Get Help from Kelp
Forests of fast-growing kelp influence the chemistry of the water in which they live. A new study evaluates their potential to ameliorate ocean acidification in sensitive coastal ecosystems.