Results: 1 - 4 of 4
Dec 31, 1971
Earth Sciences Report
… under less than 100 feet of overburden. High effective ash …
Oct 25, 2018
Report
… (SV) come from estimates of the overburden pressures obtained by …
Aug 08, 2016
Data
Dec 31, 1979
Open File Report
… because of the large overburden thickness. Near-surface …