Focus on Sedimentary Environments

River system on an active stratovolcano

White River, Mount Hood, Oregon, USA


	The upper part of White River Canyon.


	View down White River Canyon

Fluvial landforms and processes

Note the flat, sloping tops to the ridges separating the river valleys. What do these surfaces represent?

Are episodes of catastrophic sedimentation always related to eruptions? Think about this, and follow some of the links on the home page before answering.