Use simple Bayesian constraints Improve the estimates and error-assignments for a package of stratigraphically-constrained radiometrically-dated units whose ages overlap within errors (with a special variant for 230Th/U ages) Д¬onstruct single-stage growth-curves for plots of comВmon-Pb data Д¬onstruct cumulative-probability / histogram plots and linearized-probability diagrams Д¬alculate both conventional (analytical-error weighted) and robust (nonparametric) x-y regressions for вЂњclassicalвЂќ and Pb-Pb isochrons Дeconvolute mixtures of components having Gaussian error-distributions using the Sambridge-Compston approach Д¬alculate and construct plots for either error-weighted or robust (nonparametric) averages of a single variable Plot Ar-Ar step-heating diagrams and find the statistically-best plateau steps and age Д¬ombine Ar-Ar isochron with Ar-Ar step-heating diagrams to obtain the logically optimum combination of both Despite expectations on my part,В ExcelВ 2011В is notВ Isoplot-compatibleД¬alculate and plot classical isochrons (Rb/Sr, Sm/Nd, U/Pb, Re/Os, Lu/HfвЂ¦) Д¬onstruct U-Pb concordia plots and calculate ages using conventional concordia intercepts, the вЂњConcordia AgeвЂќ algorithm, 3-D planar concordia intercepts, or 3-D linear (вЂњTotal U/PbвЂќ) isochrons Д¬alculate uranium-series isochron ages using 3-D or 2-D isochrons and construct 230Th/238U-234U/238U evolution curves and isochrons To runВ IsoplotВ on the Macintosh, you will need to acquire a Windows-enabling program (FusionВ will work, but notВ CrossoverВ norВ Parallels). There are no versions ofВ IsoplotВ compatible with native Macintosh versions ofВ Excel, includingВ ExcelВ 2011. Expect a speed penalty of up to a factor of 10 when usingВ ExcelВ 2007/2010. If you must useВ ExcelВ 2007В orВ ExcelВ 2010, request a copyВ IsoplotВ 4, which is compatible withВ Excel 2007/2010В only.В Isoplot 4В has no more functionality thanВ Isoplot 3.7, and somewhatВ lessВ flexibility. Isoplot 3В is not compatible with either Excel 2007 orВ ExcelВ 2010. No versions ofВ IsoplotВ can be run as a stand-alone program. Isoplot 3.7В andВ Isoplot 4.1В are вЂњAdd-InвЂќ programs that run only underВ Windows ExcelВ versions 2003 and earlier (Isoplot 3.7), or only underВ ExcelВ versions 20 (Isoplot 4.1). IsoplotВ is a flexible tool for the mathematical and graphical interpretation of radiogenic-isotope data, especially as applied to geochronology. BGC is not affiliated with Red XВ® Holdings, LLC.В IsoplotВ®В is a registered trademark of Red XВ® Holdings, and is licensed to Shainin В® LLC. IsoplotВ is BGCвЂ™s Visual Basic Add-in for MicrosoftвЂ™sВ ExcelВ В® for data analysis and graphical presentation of geochronology, earth science and other radiogenic isotope data only.Д«GCвЂ™sВ IsoplotВ is not theВ IsoplotВ®В for analysis of any measuring system as described at.

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