Ca, and it is referenced to a written guide by Faure and Powell (50). Once again, Woodmorappe (134) defectively misrepresents the important points. The “isochron” that Woodmorappe (134) refers to is shown in Figure 6 because it seems in Faure and Powell (50). The info try not to fall on any line that is straight usually do not, therefore, form an isochron. The first information come from a study by Wasserburg among others (130), whom plotted the info as shown but failed to draw an isochron that is 34-billion-year the diagram. The “isochrons” lines had been drawn by Faure and Powell (50) as “reference isochrons” solely for the intended purpose of showing the magnitude associated with the scatter within the information.