Vol. 266, Issue 8, 1968October 01, 1968 EDT
K-Ar Ages and Time Span of Emplacement of the Boulder Batholith, Montana
K-Ar Ages and Time Span of Emplacement of the Boulder Batholith, Montana
Robert I. Tilling, Montis R. Klepper, John D. Obradovich,
Tilling, R. I., Klepper, M. R., & Obradovich, J. D. (1968). K-Ar ages and time span of emplacement of the Boulder Batholith, Montana. American Journal of Science, 266(8), 671–689. https://doi.org/10.2475/ajs.266.8.671