Continued Development, Distribution, and Maintenance of the Isoplot Computer Program

0125705Ludwig本赠款支持改进广泛使用的等值图/Ex，这是一种基于MS Excel的计算机程序，用于减少和评估放射性同位素数据。该程序将扩展到包括几个新功能，包括：1)贝叶斯+蒙特卡罗方法，用于提高一系列地层受限地层的辐射数据的精度；2)两种主要的Ar-Ar年龄方法(逐步释放年龄谱和Ar-Ar等时线)的逻辑、统计和图形集成方法；3)高斯分解模块，以实现对涉及多个年龄成分的年龄套件的定量评估；4)代码修订，以保持与新版本Excel的兼容性，并在检测到错误时消除它们；以及5)扩展和修订等值线图用户手册，以增加清晰度和教学效果。

0125705LudwigThis grant provides support for refinements to the widely-used Isoplot/Ex, a MS Excel-based computer program used for reduction and evaluation of radiogenic isotope data. The program will be expanded to include several new capabilities including: 1) a Bayesian + Monte Carlo approach for improving the precision of radiometric dates from a sequence of stratigraphically-constrained beds; 2) a method for logical, statistical, and graphical integration of the two main Ar-Ar age-approaches (stepwise-release age-spectra and Ar-Ar isochrons); 3) a Gaussian unmixing module to enable quantitative evaluation of age-suites involving multiple age-components; 4) code revisions to maintain compatibility with new versions of Excel and eliminate bugs as they are detected; and 5) expansion and revision of the Isoplot User's Manual to increase clarity and teaching effectiveness.***