Results: 1 - 4 of 4
Apr 15, 2009
Data
… ooidal ironstone, ooidal sandstone, sandstone, siltstone, shale, Bad …
Aug 31, 1977
Open File Report
… Formation (oil impregnated sandstone), the Cretaceous … the Grand Rapids Formation (sandstone) and younger …
Dec 14, 2005
Information Series
… Bad Heart Formation siltstone-sandstone. It has been suggested …
Dec 31, 1961
Earth Sciences Report