Potassium-Argon Dates of Three Pleistocene Interglacial Basalt Flows from the Sierra Nevada, California Dalrymple, G. Brent Abstract Publication: Geological Society of America Bulletin Pub Date: 1964 DOI: 10.1130/0016-7606(1964)75[753:PDOTPI]2.0.CO;2 Bibcode: 1964GSAB...75..753D