A dike is a sheet-shaped igneous intrusion. Cuts across existing rock structures.
A dike (also spelled dyke) is also an elongated raised earthen mound used as a flood defence or to protect reclaimed land (see Polder).
- ↑ Pellant, Chris. The Complete Book of Rocks and Minerals, Dorling Kindersley Inc.: New York (1995). 250.
- ↑ The Free Dictionary - definition of dike