Cenozoic potassium-rich mafic volcanism in the western U.S.A.: Its relationship to deep subduction

Rowell, W.F., and Edgar, A.D., 1983, Cenozoic potassium-rich mafic volcanism in the western U.S.A.: Its relationship to deep subduction: Journal of Geology, v. 91, no. 3, p. 338-341.