Results: 1 - 2 of 2
Dec 31, 1984
Earth Sciences Report
… determined on the reconstructed overburden, of 6.25 kJ/kg per metre … (0.82 Btu/lb/ft) of depth (or overburden). Progressively greater amounts of overburden existed in a direction …
Dec 31, 1979
Economic Geology Report
… Exploitation is uncertain as overburden is thick in many …