Overburden

Overburden is the material that sits on top of an area where miners or archaeologists want to dig. In mining, it is usually the soil or rock that sits on top of a coal or ore deposit. The soil needs to be removed to get to the minerals or objects below.

Overburden above a dinosaur track in Australia

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.