Results: 1 - 3 of 3
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, 1971
Earth Sciences Report
… under less than 100 feet of overburden. High effective ash …
Dec 31, 1979
Open File Report
… because of the large overburden thickness. Near-surface …