Results: 1 - 3 of 3
Dec 31, 1978
Earth Sciences Report
… … This report, The Sand and Gravel Resources of the … of reports which discuss the sand and gravel resources of the … to provide information on the sand and gravel resources of …
Dec 31, 1970
Open File Report
… of many industrial sand products are outlined in this … concern high purity silica sand used as a raw material for the … industry, and for molding sand, hydraulic fracturing sand and …