Filters: Tags: {"scheme":"http://www.sciencebase.gov/vocab/undefined/DenverHistoryPhotoLibrary/Collections"} (X) > Date Range: {"choice":"year"} (X) > partyWithName: Bradley, W.H. (X)

Filters Date Types (for Date Range) Contacts U.S. Geological Survey Categories Image (2) Tag Types collection (2) Tags (with Scheme=http://www.sciencebase.gov/vocab/undefined/DenverHistoryPhotoLibrary/Collections) bradley w.h. collection (2) View Results as: JSON ATOM CSV

Specimen of moderately rich oil shale showing fine laminations and the characteristic loop bedding. Garfield County, Colorado. 1924. Specimen of moderately rich oil shale showing fine laminations and the characteristic loop bedding. The zone a little below the center is most typical and represents the edges of polygons formed by sun cracks. From east fork of Parachute Creek T.5 S., R. 95 W. Garfield County, Colorado. 1924. Plate 17-B in U.S. Geological Survey. Professional paper 168. 1931. Categories: Image; Tags: Bradley W.H. Collection, Garfield County, Colorado, Photographers, photo print Varves in organic marlstone from a bed about 1800 feet above the base of the Green River formation. Garfield County, Colorado. 1927. Varves in organic marlstone from a bed about 1800 feet above the base of the Green River formation on Clear Creek in sec. 9, T. 5 S., R. 98 W. The darker bands of rock contain the most organic matter. Magnified 4 times. Garfield County, Colorado. 1927. Plate 11 in U.S. Geological Survey. Professional paper 158. 1930. Categories: Image; Tags: Bradley W.H. Collection, Garfield County, Colorado, Photographers, photo print