In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some volume of ore. For example, a 3:1 stripping ratio means that mining one cubic meter of ore will require mining three cubic meters of waste rock. Stripping ratios are typically reduced to show...
Found on
http://en.wikipedia.org/wiki/Stripping_ratio
(from the article `coal mining`) ...great depths that it becomes uneconomical to continue with surface mining. The point where it becomes economically necessary to switch from one ... ...point where the revenue from the exposed ore is less than the costs involved in its recovery. Mining then ceases. The ratio of the amount of waste ... ...
Found on
http://www.britannica.com/eb/a-z/s/172
The unit amount of overburden that must be removed to gain access to a similar unit amount of coal or mineral material.
Found on
http://www.coaleducation.org/glossary.htm
The unit amount of overburden that must be removed to gain access to a similar unit amount of coal or mineral material.
Found on
http://www.rocksandminerals.com/glossary.htm
The ratio of waste materials plus leaching ore to ore mined in the material moved in an open-pit operation.
Found on
http://www.southernperu.com/ENG/intope/Pages/PGGlossary.aspx
The ratio of tonnes removed as waste relative to the number of tonnes of ore removed from an open-pit mine.
Found on
https://copperfoxmetals.com/investors/glossary-of-terms/
The ratio of tonnes removed as waste relative to the number of tonnes of ore removed from an open pit mine.
Found on
https://www.encyclo.co.uk/local/22734
No exact match found.
