How much sediment does a river carry? Where does it all go? What happens along the way? How have human actions modified the way rivers work? Can rivers be restored after adverse affects from human ...

The sediment was separated into layers one centimeter ... and scanning electron microscopy (SEM) were used, along with interactive keys and specialized bibliography to identify and describe ...

That is also influencing the huge quantities of sediment the rivers carry, and these changes are more varied than the research team had anticipated before they began their study. Published in the ...

Nearly 45 years after Mount St. Helens’ eruption sent almost 90 billion cubic feet of debris into the upper Toutle Valley, millions of tons of sediment still pour into the Cowlitz River each year.