This reservoir is tapped by one or several conduits, along which fluid-rich mud ascends because it is less dense than the surrounding rock. The mud that reaches the surface may form small mounds ...

He's hopeful the mud-wasp dating technique can now be used at more locations right across the north of Australia, and perhaps at other rock art locations in the Americas and Europe. Gavin Broad is ...

A wave of mud and rock triggered by heavy rain engulfed those collecting stones, the fire service said. Myanmar is the world's biggest source of jade but its mines have seen numerous accidents ...