Anyone wanna hear a bad geology joke? go on, humor us Ok. A bit of background. Everyone know what halite is? if it fails then you will have to be killed a most imaginative and horrible way :) It's just a big block of salt. *not the joke* Anyways, basalt is the stuff that's on the ocean floor. So... what do geologists call the stuff on the ocean floor? fish shit Sheep halite. *it was on a test* Fish shit is probably even funnier.