Supplemental material: Timing of intense magmatic episodes in the northern and central Sierra Madre Occidental, western Mexico
journal contributionposted on 16.11.2012, 00:00 by Fred W. McDowell, William C. McIntosh
Geosphere, December 2012, v. 8, p. 1505-1526, doi:10.1130/GES00792.1, Supplemental Figure 1 - Age-probability distribution spectra, % radiogenic 40Ar contents, 39Ar concentrations, and K/Ca ratios are given for published analyses for which new measurements have been added, or which have been renormalized to 28.02 Ma for the Fish Canyon sanidine standard since publication. Open symbols denote analyses not included in the age calculation. The weighted mean ages are shown with 2σ error limits.