Results: 1 - 4 of 4
Jan 23, 2020
Data
… quartzite, other stones, clay, shale, salt, potash, gypsum, sodium …
Nov 18, 2008
Data
… coal, shaly-coal and coaly-shale), formation tops and …
Dec 31, 1968
Earth Sciences Report
… a relatively impermeable marine shale, completely underlies the … beds of argillaceous sandstone, shale, and coal which immediately …
Apr 15, 2009
Data
… sandstone, sandstone, siltstone, shale, Bad Heart rubble and till, …