Restoring rivers to their free-flowing state promises a host of environmental benefits, but contaminated sediments may cloud the picture.
sediments
Posted inResearch Spotlights
Past Phosphorus Runoff Causes Present Oxygen Depletion in Lakes
Sediment cores show how phosphorus pollution in the 1950s led to current, inherited hypoxia in lakes in the Alps.
Posted inResearch Spotlights
Underwater Robot Tracked Ocean Sediment During Hurricane Sandy
Hurricane Sandy moved a lot of debris, but where did it all end up?
Posted inFeatures
Building Sandbars in the Grand Canyon
Annual controlled floods from one of America's largest dams are rebuilding the sandbars of the iconic Colorado River.
Posted inResearch Spotlights
Surface Folds Hint at Magnitude of Slip Along Thrust Faults
The shape of deformed sediments at the surface may allow researchers to estimate the cumulative slip along thrust faults such as the Chelungpu fault in Taiwan.
Posted inNews
Ancient Roman Aqueducts Could Spill Climate Secrets
Thick layers of mineral deposits that coat the aqueducts could provide a vast pool of information about climate during the Roman Empire.
Posted inResearch Spotlights
Shape of Stream Channels Gives Clues to Sediment Size
The shape can also reveal information on the force required to carve sediment from its bank.
Posted inResearch Spotlights
Tracking Down a Subduction Zone Earthquake
Researchers use computer simulations to find the date and earthquake source of an ancient tsunami that deposited sediment in a Hawaii sinkhole.
Posted inResearch Spotlights
Exploring How Water Flow Affects Bed Forms in Different Environments
In a flat sand bed, water creates undulating features.
Posted inResearch Spotlights
Hillslopes Regulate Sediment Supply to River Channels
New study rethinks dynamics of runoff-driven erosion in response to rainstorms.