Results: 1 - 7 of 7
Jan 23, 2020
Data
… marl, tufa, phosphate, silica sand, pumicite, sulphur, fly ash, humalite, and sand and gravel. This dataset is …
Dec 31, 1982
Open File Report
… Phosphate Rock, Potash, Salt, Sand and Gravel, … Sandstone-Siltstone, Silica Sand, Silver, Sodium Sulphate, …
Dec 31, 1968
Earth Sciences Report
… are beds of marl, gravel, sand, and conglomerate. The …
Dec 31, 1974
Economic Geology Report
… shards and the mineralogy of the sand and silt fractions suggest … can be related to the amount of sand-and silt-sized volcanic glass …
Apr 30, 1993
Open File Report
… ore pelletizing, bonding foundry sand, oil well drilling, …
Feb 29, 1948
Report
… for 1947, including bituminous sand, clay, bentonite, soil and …
Jun 30, 1972
Open File Report