Results: 1 - 2 of 2
Dec 30, 1990
Information Series
… and hydrological parameters in overburden materials. The ultimate … and spoil piles; diggability of overburden materials; the ability of overburden and pit-floor materials …
Dec 31, 1978
Earth Sciences Report
… least 1 m, and have a ratio of overburden to gravel and sand of no …