Filters: Tags: Elderkin R.L. Collection (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts U.S. Geological Survey Elderkin, R.L. Categories Image (7) Tag Types collection (7) label (7) category (5) Place (2) Tag Schemes http://www.sciencebase.gov/vocab/undefined/DenverHistoryPhotoLibrary/Collections (7) http://www.sciencebase.gov/vocab/undefined/DenverHistoryPhotoLibrary/PhotoMedia (7) http://www.sciencebase.gov/vocab/undefined/DenverHistoryPhotoLibrary/Categories (3) View Results as: JSON ATOM CSV

Natural size specimen of oil shale. Oil shale is actually a marlstone. Colorado. No date. Natural size specimen of oil shale. Oil shale is actually a marlstone. The darker the color the higher the shale oil content. Colorado. n.d. Categories: Image; Tags: Colorado (CO), Elderkin R.L. Collection, Photographers, color transparency (slides) Geokinetics site where they are developing a true insitu shale oil recovery method. The piping over the retort is visible in right center. Geokinetics site where they are developing a true insitu shale oil recovery method. The piping over the retort is visible in right center. Uintah County, Utah. August 27, 1981. Categories: Image; Tags: Elderkin R.L. Collection, photo print Oblique aerial view of oil shale prototype tract C-b with ventilation/escape shaft headframe in foreground. Oblique aerial view of oil shale prototype tract C-b with ventilation/escape shaft headframe in foreground. Rio Blanco County, Colorado. August 27, 1981. Categories: Image; Tags: Aerial, Elderkin R.L. Collection, photo print Oblique aerial view of the production shaft and service shaft headframes on oil shale prototype tract C-b. Oblique aerial view of the production shaft and service shaft headframes on oil shale prototype tract C-b. Rio Blanco County, Colorado. August 27, 1981. Categories: Image; Tags: Aerial, Elderkin R.L. Collection, photo print Battlement Mesa, under construction, Colorado River on the right. Garfield County, Colorado. August 27, 1981. Battlement Mesa, under construction, Colorado River on the right. Garfield County, Colorado. August 27, 1981. Categories: Image; Tags: Elderkin R.L. Collection, photo print Oil shale prototype tract C-a. Rio Blanco County, Colorado. 1978. Oblique aerial view of surface site development. Categories: Image; Tags: Elderkin R.L. Collection, Mills, Mines, Quarries, Oil Shale Development, Photographers, Rio Blanco County, Colorado, All tags... photo print, Fewer tags Aerial view of site of Geokinetics true in situ test. Piping and boreholes for retort rubblization visible at lower left. Aerial view of site of Geokinetics true in situ test. Piping and boreholes for retort rubblization visible at lower left. Note ground cracks where rubblization has uplifted the ground surface. Uintah County, Utah. August 27, 1981. Categories: Image; Tags: Aerial, Elderkin R.L. Collection, photo print