s in ground formed by the mud flows at muddy volcanoes of paclele mari, near buzau.

berca botanical bubbles buzau clay cold condition cones conical county crust deep dries emerges environment eruption europe gas gases geological gullies landscape layers levels lunar mantle mari mud natural nitraria obione paclele plants ravene ravine reservation romania salt scarce schoberi small soil solid species structures surface unique vegetation verrucifera volcano vulcanoes water