Results: 1 - 5 of 5
Jan 21, 2008
Data
… 20c, Middle Cambrian Lithology Shale. Shapefiles were produced … … Middle Cambrian Lithology Shale (GIS data, line features) …
Jan 21, 2008
Data
… 20c, Middle Cambrian Lithology Shale. Shapefiles were produced … … Middle Cambrian Lithology Shale (GIS data, polygon features) …
Jan 21, 2008
Data
… - Lower Ordovician Lithology Shale. Shapefiles were produced … - Lower Ordovician Lithology Shale (GIS data, line features) …
Jan 21, 2008
Data
… - Lower Ordovician Lithology Shale. Shapefiles were produced … - Lower Ordovician Lithology Shale (GIS data, polygon features) …
Dec 31, 1957
Bulletin
… the lower part of the Colorado shale of Alberta and Saskatchewan, and in the Mowry shale of the Black Hills area of …