Minerals Collection,Set Of 15

Description

Showing upper level of an underground surface in which soil or rock is permanently saturated with water. The water table separates the underground water zone from the capillary fringe or zone of aeration.

Description

Shows mining when any ore body lies at a considerable distance below the surface. The specific mining method selected depends upon the size, shape and orientation of the ore body and the depth involved.

Description

Showing inner, outer material and formation of the Earth.