A new sediment tracer uses the interactions between radiation, charge, and the Sun to uncover the hidden transport histories of sand grains.
geochemistry
Posted inNews
UV Radiation Contributed to Earth’s Biggest Mass Extinction
To find the first direct evidence of heightened UV radiation during the end-Permian mass extinction, researchers turned to chemical evidence preserved in pollen grains.
Posted inEditors' Highlights
CO2 Reduces the Onset of Fracturing at the Nanoscale in Quartz
Large scale molecular dynamics simulations unravel the coupled processes at work during fracturing and flow of carbon dioxide and water in quartz grains at the nanoscale.
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Does This Mineral Indicate Oxygen on Mars?
Manganese oxides are thought to be a signature of atmospheric oxygen. But on the Red Planet, recent results suggest they might be more of a red herring.
Posted inResearch Spotlights
What Happens to Drugs After They Leave Your Body?
It’s hard to predict with certainty how drugs break down once they enter waterways. In a new study, scientists devised a way to do just that.
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Mission Could Lasso Amino Acids from the Icy Plumes of Enceladus
If geysers from Saturn’s moon Enceladus contain amino acids, new research shows that a spacecraft could collect them with signatures of possible life preserved.
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Martian Meteorites Offer a Tantalizing Glimpse of the Red Planet
By studying these literal chunks of Mars, scientists are learning more about the Red Planet’s deep interior and impact history.
Posted inEditors' Highlights
Machine Learning Looks Anew at Isotope Ratios in Oceanic Basalts
While past attempts to define isotopic endmembers and assign them a geodynamic significance ended in controversy, a machine-learning clustering algorithm offers a solution to this classical problem.
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Isótopos de criptón proporcionan nuevos indicios sobre el pasado de los planetas
Para determinar cómo los elementos cruciales para el desarrollo de la vida llegaron a la Tierra, los científicos estudian los gases nobles. Actualmente, métodos mejorados traen consigo nuevos indicios a partir del criptón, el gas noble más enigmático.
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Rare Meteorites Shed Light on Diamond Formation
By studying meteorites believed to be remnants of the catastrophic breakup of a dwarf planet, researchers are learning how lonsdaleite, a particularly hard type of diamond, forms in nature.