App is deprecated.Last check on Mar 20, 2024.
eArgon

eArgon

for argon geochronology

App Report, Market and Ranking Data
category
price
$599.99
Reviews
0 (0)
United States United States
Description
for argon geochronology
This program has been written to facilitate the analysis and interpretation of argon geochronology data from step-heating experiments in vacuo in a furnace attached to a mass spectrometer. The program allows corrections for excess argon, using the analysis of York Plots to recognise trends. The program allows analysis of complex age spectra using the method of asymptotes and limits. Cumulated plots allow recognition of Frequently Measured Ages (FMAs). Gaussian plots present data using probability. Arrhenius Plots and Relative Radius Plots allow estimates for the diffusion parameters for individual samples. Data is input in XML format with data tags available for individual laboratories by request. The output document is in an XML format intended to become an industry standard, ensuring data interoperability between different programs and different laboratories. 

All data is recorded in a single document using XML format, allowing recreation of the analysis, including isochrons, asymptotes and limits for individual spectra, and other parameters. Data for a single sample can be exported to the Wunderkind and MacArgon apps for inversion. Wunderkind uses 39Ar release data from  ultra-high-vacuum (UHV) temperature-controlled step-heating diffusion experiments. MacArgon allows forward modelling of the effect of arbitrary pressure-temperature-time histories. Step colours are also saved in the eArgon document. A small screen format is also available for the Age Spectrum Window. 

The weighted mean is used for isochrons on the age plot, using formula in Mahon 1996. If the MSWD is unacceptably high, a weighted average used instead reflecting the scatter of the individual steps [shown at the 2σ level] The Turner inverse 40Ar isotope correlation diagram uses the York 1969 regression as corrected by Mahon 1996 and Trappitsch 2018. The square root of the MSWD (Pearson's chi statistic) is used to assess the likelihood that the scatter in age is within the 95% probability limits defined using equations as set out by Wendt and Carl 1991 but here evaluating the approximations to the scatter distributions using the gamma function, and directly estimating the uncertainty in the chi-statistic.
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Download & Revenue
DOWNLOAD N/AFeb 2024Worldwide
REVENUEN/AFeb 2024Worldwide
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About
Bundle Id
virtualExplorer.eArgon
Min Os. Version
12.3
Release Date
Mon, Jan 7, 2013
Update Date
Thu, Aug 25, 2022
Content Rating
4+
Has IMessage
No
Support Watch
No
Support Siri
No
File Size
2.37MB
Has Game Center
No
Family Sharing
No
Support Passbook
No
Supported Languages
English
What's New
version
12.0.0
updated
1 year ago
Version §12 provides a document-based architecture that  stores key aspects of the analysis of a set of argon age spectra, and other data associated with interpretation of associated argon isotope analyses.  Version §12.0.0 corrects a minor error and now shows the weighted mean age and the scatter of the individual steps [shown at the 2σ level] if the MSWD is too high to allow definition of a 'plateau' segment.
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