Mud volcanoes are essentially instruments for taking gas and mineral waters, sometimes with traces of oil, together with the associated mud, from great depths (8-12 km) and depositing them on the surface.
After eruption the breccias undergoes rapid erosion, and the mud flows are reworked into a complex system of gulleys and ridges, fanning-out from the crater margins.
The mud of these volcanoes have healing power too. Mud, obtained mainly from slit deposits, peatbog or sapropelic muds, are used extensively around the world for curative purposes in the form of injections, baths, washes, compresseses etc.
