Abstract
We present HNC-Plot, an Excel Visual Basic Application (Excel VBA) that can easily be used to create graphical plots of fluids associated with volcanic gases or geothermal manifestations, based on their helium, nitrogen and CO2 isotope data. HNC-Plot has been designed in a simple way; all the user has to do is to input data in an Excel spreadsheet. The spreadsheet also contains buttons which have links to Excel VBA codes that generate plots. Once, the respective button is clicked, and all required variables are defined, Excel VBA generates a plot with labels and axes. Based upon the user preferences, additional tasks such as construction of mixing lines between mantle and crustal gases or calculation of end-member proportions can also be performed. We sincerely believe geoscientists can quickly and easily create these plots, free of charge, with this application. This study also presents previously published data from related literature to show the foundations of the application and to present sample plots created with it.
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The authors would like to thank the two anonymous reviewers for the valuable review, comments, and suggestions which improved the manuscript.
Availability and requirements
HNC-Plot program can be requested via an e-mail to the authors, without any charge. (huseyin.karakus@dpu.edu.tr, harun@yyu.edu.tr). HNC-Plot is a macro-enabled Microsoft Excel (HNC-Plot.xlsm) file compatible with Windows 7 (or higher), and can be applied in Microsoft Excel 2007 or higher.
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Communicated by: H. A. Babaie
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Karakuş, H., Aydin, H. HNC-Plot: an excel VBA for visualization of helium, nitrogen and CO2 isotope data of crustal and mantle gases. Earth Sci Inform 10, 115–125 (2017). https://doi.org/10.1007/s12145-016-0272-4
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DOI: https://doi.org/10.1007/s12145-016-0272-4