Results: 1 - 3 of 3
Dec 31, 1962
Bulletin
Jul 31, 1976
Open File Report
… established between air and water permeability within the coal … continuity exists between the water in the abandoned stripping …
Dec 31, 1988
Earth Sciences Report
… original plant mineral matter, water derived clastic partings, and … deposited volcanic ash horizons. Water derived clastic partings are …