25 June 2004 - 0549
![This is a photo of active flows with `a`a surface crust.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/0549_4.jpg?itok=MEJdVPsa)
Detailed Description
Similar process as in left image. These two images show that active flows with `a`a surface crust can disgorge fluid lava the can cool to smooth pahoehoe. The terms `a`a and pahoehoe are best used for the solidified products only and should not be applied to flowing lava. 0549.
Sources/Usage
Public Domain.