Rivers transport sediment to the coast, but how much get offshore is a mystery. A new study shows that deltas retain 28% of the global riverine sediment discharge with most trapped in large deltas.
sediments
Posted inNews
U.S. River Sediment Transport Is Becoming “Burstier”
The time frame in which U.S. rivers move most of their sediment has compressed significantly, which could have implications for water treatment, aquatic habitats, erosion, and harmful algal blooms.
Posted inNews
The Secrets of Acid Salt Lakes
These stunning bodies of water—saltier than seawater and nearly as acidic as lemon juice—can teach us more about where life can survive, on Earth and beyond.
Posted inEditors' Highlights
Biosignatures Extend Robustly into the Top Kilometer of Sedimentary Basins
Through the top kilometer of sedimentary basins, biosignatures track microbial cells, permeability, and water inputs. Below that, permeability limits microbial presence despite temperatures conducive to life.
Posted inNews
A Hydrological Paradox on the Silk Road
How did trade prosper in Central Asia during a period of droughts and little rain?
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Antarctica Is Releasing Mercury Faster Than Ever Because of Climate Change
A new study shows melting glaciers are remobilizing pollutants.
Posted inEditors' Highlights
Late Campanian Arabia-Eastern Anatolia Collision
New sediment-provenance data date the closure of the southern Neotethys and the Arabia–Eastern Anatolia collision to 74–71 million years ago, at least 25 million years earlier than previously estimated.
Posted inFeatures
Kuwanna Dyer-Pietras: Running Through the Rock Record
A geologist who left academia found a new way to stay connected to Earth, one ultramarathon at a time.
Posted inNews
Pay Dirt: How Colonialism Left Its Mark on the Soil of the American Southwest
An alpine lake holds traces of how Spanish conquistadors kicked up dust as they colonized the Southwest.
Posted inNews
Warm Waters Disrupt Seagrasses’ Microbial Environment
Microbial communities in ocean sediments become imbalanced as water temperatures rise, harming seagrass growth, a new study suggests.