通过解析古老岩石中的磁信号，我们得以重新认识这块古大陆在埃迪卡拉纪时期的位置。
geochemistry
Posted inResearch Spotlights
Carbon-Rich Rocks May Have Cooled the Ancient Martian Atmosphere
Data from the Perseverance rover indicate abundant carbonates in Jezero Crater, a finding with implications for Mars’s climatic history.
Posted inNews
Mongolian Mountains Rose When the Crust Bounced Back
A plate folded, the lithosphere sank, and up popped a mountain range.
Posted inResearch Spotlights
Where Was Baltica 616 Million Years Ago?
Disentangling magnetic signals in its ancient rocks gives an updated view of the paleocontinent’s position during the Ediacaran period.
Posted inAGU News
The Persistence of PFAS
Researchers around the world are seeking to search and destroy pervasive “forever chemicals.”
Posted inFeatures
Chemical Companies Are Churning Out New PFAS. Where in the World Are They Ending Up?
Bans on older versions of “forever chemicals” seem to be working. But emerging variants behave in ways that scientists are only beginning to pin down.
Posted inNews
A Peculiar Polymer Paired with Sunlight Could Remove PFAS
A new photocatalyst might help take the “forever” out of “forever chemicals” present in water.
Posted inNews
Engineering a Cleaner Way to Extract Lithium
The new chemical solvent technique could cut water use, speed extraction, and unlock reserves like California’s Salton Sea.
Posted inEditors' Vox
A Double-Edged Sword: The Global Oxychlorine Cycle on Mars
Global detections of oxychlorine salts reveal a complex, 4-billion-year chemical cycle on Mars. They can act as de-icing agents, oxidants, a hazard and a vital resource for future human exploration.
Posted inNews
The AMOC of the Ice Age Was Warmer Than Once Thought
An analysis of sediment cores indicates that North Atlantic waters were relatively warm and continued to circulate even under major climate stress during the Last Glacial Maximum.