Researchers observe how water vapor and liquid alter sedimentary rocks through physical and chemical processes.
geochemistry
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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.
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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.
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The Catcher in the Ice
There are three ways to extract gases from an ice core. The cleanest one, sublimation, is getting easier.
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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.
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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.
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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.
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When Did Archaic Humans Control Fire?
A familiar geochemical technique shines a new spotlight on early hominin use of fire.
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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.
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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.