By sampling and analyzing zircons from glacial eskers dating from about 20,000 years ago, the extent of the oldest known rocks on Earth can be better mapped and constrained.
sediments
Posted inEditors' Highlights
A Unique Glimpse at Sediment Erosion and Deposition by Wind
The Lut Desert in Iran is an exceptional natural laboratory to study how wind moves sediment across the landscape. A new study quantifies erosional and depositional sediment fluxes of the desert.
Posted inResearch Spotlights
Atmospheric Rivers Help Coastal Wetlands Build Up Sediment
Accounting for these storms and flooding can help experts predict and respond to rising sea levels.
Posted inNews
Satellites Show Magnitude of Human Influence on River Sediment Flux
Dam-building has decreased the amount of sediment transported by rivers, while land use changes have increased the amount.
Posted inNews
Zhurong Rover Spots Evidence of Recent Liquid Water on Mars
The Chinese rover identified hydrated minerals—likely associated with groundwater—in sediments dating to the Red Planet’s most recent geologic period.
Posted inEditors' Highlights
Time-Step Filtering in Holocene Global Magnetic Field Models
Through a local fixed time-step filter, global Holocene magnetic field models remain mathematically tractable refining our insight into field variability and improving archeological dating.
Posted inEditors' Highlights
Unlocking Ultra-High-Resolution Paleothermometry from Sediments
Mass spectrometric imaging techniques used to extract micron-scale organic paleothermometry signatures from Arabian Sea sediments show that they skillfully reflect observations.
Posted inScience Updates
A Sharper Look at the World’s Rivers and Catchments
Digital hydrographic maps have transformed global environmental studies and resource management. A major database update will provide even clearer and more complete views of Earth’s waterways.
Posted inNews
Mortality of Seagrass Meadows May Not Kill Their Methane Release
New research indicates that seagrasses continue to release methane even after they die, complicating blue carbon initiatives.
Posted inEditors' Highlights
Moving Earthquake-Generated Sediment Through a Landscape
Ten years after the Wenchuan earthquake, most of the new sediment it produced remained on the landscape, indicating a long recovery time.