Evidence of past exploration, evaluation or extraction of a specific mineral occurrence
Evidence of past exploration, evaluation or extraction of a specific mineral occurrence
The separation of minerals based on particulate trajection based on density. This process originated by placing gold bearing gravel in a wool blanket, and discarding the lighter materials that do not immediately fall upon tossing of the mixture
Atmospheric deterioration of rock
Machinery assembled in circuit for the purpose of the wet physical separation of minerals
Drilling unconsolidated soil and gravel by use of compressed water flow
A vast bending of the Earths crust
Rocks lying adjacent to, or hosting an orebody