Deeply furrowed crust on lower part of breakout
![Deep troughs of coarse folds with lava visible in cracks](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/20030305-1720_DAS_large.jpg?itok=jRvdG20s)
Detailed Description
Deeply furrowed crust on lower part of breakout but 5 minutes later. Furrows are troughs of coarse folds (actually folded folds or even folded folded folds) that develop in crust as flow slows. Width of view, about 2 meters.
Sources/Usage
Public Domain.