Chemical and mineralogical evidence of fluid flow—potentially conducive to microscopic life—was revealed in rock cores extracted from the crater’s “peak ring.”
geology
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Geology and Chemistry Drive Animal Migration in the Serengeti
Fieldwork in Tanzania suggests that soil chemistry—influenced by local volcanism and tectonic activity—might help dictate the record-setting migration of over a million wildebeests.
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GeoGirls: Confidence Erupts from a Camp at a Volcano
Summer camp at Mount Saint Helens empowers girls with science, confidence, and fun.
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Basalts Turn Carbon into Stone for Permanent Storage
Scientists have shown that mineral carbonation can permanently capture and store carbon quickly enough and safely enough to rise to the challenge of climate change.
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Earth Rocks and Moon Rocks Are More Different Than We Thought
New analyses of oxygen isotopes reveal terrestrial and lunar rocks aren’t as similar as previously thought, potentially changing the way we think the Moon formed.
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Japan Puts Its Mark on Geologic Time with the Chibanian Age
The newly named period in the Pleistocene identifies a key moment in geological history: the last time Earth’s magnetic poles switched places.
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Giant Geode Grew Slow and Steady
Temperature fluctuations, maybe from climate or maybe from geothermal systems, amplified a natural process that grew the crystals.
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A Thermochemical Recording Mechanism of Earth’s Magnetic Field
A laboratory study assesses thermochemical remanence as a reliable paleointensity recorder, which could open new venues for studying Earth’s ancient magnetic field.
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Ancient Precipitation Reveals Clues About Mountains and Climate
By studying the chemical signatures of 300-million-year-old precipitation, researchers find evidence that the supercontinent Pangea contained peaks as tall as the European Alps.
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Will Cigarette Butts Be Our Environmental Legacy?
People litter them by the trillions—but how long will butts last through the ages?