20 February 2004 - 1202

Detailed Description
Pieces of tephra picked up by moving lava and stuck on upper crust. As lava wells out from front of flow, it picks up small pieces of tephra. As flow inflates, the pieces are lifted up onto top of flow. The pieces have only moved up, not backward. 1202.
Details
Image Dimensions: 800 x 600
Location Taken: US