Chitwood, Lawrence A., Robert A. Jensen, and Edward A. Groh, 1977, The Age of Lava Butte. The Ore Bin 39(10)157-165.

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
USGS-107 35De,LavaButte (35De, Lava Butte) 6160 ± 65
USGS-80 35De,Gas-LineFlows (35De, Gas-Line Flows) 6150 ± 65