Photo of toe of lava
Detailed Description
Fifty seconds later, crust has cooled, thickened, and developed definite corrugations as free flow of lava is impeded by flat, grassy surface.
Sources/Usage
Public Domain.
Fifty seconds later, crust has cooled, thickened, and developed definite corrugations as free flow of lava is impeded by flat, grassy surface.
Public Domain.