User's Manual for Isoplot 3.00: A Geochronological Toolkit for Microsoft Excel

2-sigma 95%-confidence activity ratios age errors age spectrum age-errors Ages of Stacked algorithm analyses analytical errors Ar-Ar Argon-Argon array function assigned errors calculated cells color column common-Pb concordance Concordia Age concordia curve Concordia plots concordia-intercept ages conf data-range dates decay constant decay-constant errors DECONVOLUTION default dialog box Earth Planet error boxes error correlations error ellipses error symbols error-weighted Excel filled symbols Gaussian histogram input errors input range intercept Inverse invoke Isoplot isochron age Isoplot charts isotope labels linear regression Ludwig menu Monte Carlo MSWD Normal normal distribution parameters Pb loss Pb-Pb isochron Phanerozoic planar regression plateau age Plateau-Isochron Plot and regress Plot Type points priori errors probability of fit probability-of-fit radiogenic regress data regression line Rescale robust regression Sambridge scatter secular equilibrium sigma sigma-level Sm-Nd specified Stacked Beds Tera-Wasserburg concordia toolbar button Total Pb/U Isochron TuffZirc U-Pb Concordia uncertainties values Weighted Average worksheet xenocrysts Y-error zircons