Results: 1 - 5 of 5
Dec 31, 1969
Earth Sciences Report
… … Eighteen samples of quartzose sand were … for glass manufacture the samples were screened, washed, and … indicated that 5 of the 18 samples merited further treatment …
Dec 31, 1974
Open File Report
… limestones. Well cutting samples were collected at 30-foot … geophysical logs and cutting samples indicated the presence of …
Mar 26, 2012
Open File Report
… of northern Montana. The rock samples were collected during 2008 …
Dec 31, 1979
Open File Report
… areas were described, and samples collected for analysis. The …
Dec 31, 1987
Open File Report
… such as aggregate quarries. Samples of the different lithologic …