Donald Cave Duncan

1911

• A uranium-bearing rhyolitic tuff deposit near Coaldale, Esmeralda County, Nevada
• Four Newly Named Tongues of Eocene Green River Formation, Northern Piceance Creek Basin, Colorado
• Four newly named tongues of Eocene Green River Formation, northern Piceance Creek basin, Colorado
• Geology and coal deposits in part of the Coos Bay coal field, Oregon
• Oil shale