Overburden ratio

What is Overburden ratio?

Overburden ratio meaning Overburden ratio refers to the amount of overburden that must be removed to excavate a given quantity of coal. It is commonly expressed in cubic yards per ton of coal, but is sometimes expressed as a ratio comparing the thickness of the overburden with the thickness of the coalbed.


reference: Glossary – U.S. Energy Information Administration (EIA)

Tags: ,