Mud

Mud is soil, loam, silt or clay mixed with water. It usually forms after rainfall or near water sources. Ancient mud deposits harden over geological time to form sedimentary rock such as shale or mudstone (generally called lutites).

See also

• Clay
• Gravel
• Peat
• Sand

References

This article uses material from the Wikipedia article Mud, which is released under the Creative Commons Attribution-ShareAlike 3.0 Unported License (view authors).