Results: 1 - 5 of 5
Dec 31, 1970
Earth Sciences 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 moulding sand, hydraulic fracturing sand, …
Nov 18, 2008
Data
May 15, 2017
Presentation
Dec 31, 1970
Bulletin
Dec 31, 1972
Earth Sciences Report
… gravel with occasional thin sand lenses and is covered by …