ceiling "boxwork" taken without flash
mikdbow (Premium member) > albums > Black Hills and Badlands National P...
Album Info:
Slow moving water was also important in exposing boxwork. At the edges of the former gypsum masses where expansion had formed cracks, limestone was dissolved. This dissolving of the surrounding limestone left the previously deposited crack fillings standing in relief. These exposed crystal fins are called boxwork.
Sample Email
Below is what we'll send to your friends to invite them - edit or remove the optional note.
No comments so far...
To be able to leave a comment please Log in or Sign up.