Jan 1, 2025 version
Mac version (Ventura 13.7.1) compiled in December 2024
Windows 11 version, compiled December 2024
UPDATE HISTORY
The Future
In November 2024, I purchased new code signing certificates so that virus checkers might be appeased and allow installation of Igpet. I can't guarantee that because code signing and notarization are just black boxes to me. This ignorance and the difficulty of code signing and notarization is taking the fun out of Igpet. The 2025 version is the 40th anniversary version and most likely the last. Updates and bug repairs will stop when the latest code signing certificates expire. instal packages will still be valid because they have time stamps. Keep your DGMs (Mac) and ZIPs (Windows). They may be the last! You may need them to reinstall.
July 2024 CoDoPi inverse model added
Codopi REE inverse model is now available in Igpet.
Carr, M. J., Feigenson, M. D., & Gazel, E. (2024). A REE inverse model from bulk distribution coefficients and boundary conditions: Results for shield and rejuvenated stage Hawaiian volcanoes. Geochemistry, Geophysics, Geosystems, 25, e2024GC011651. https://doi.org/10.1029/2024GC011651
Two PDF files that help explain how to use the inverse were added to IgpetDocs folder in December 2024.
Guide to the Codopi subroutine; inverse modeling using REEs
Synthetic melt suites for Codopi
December 2023
Continuing revision to installation packaging, with new signing certificates and notarization process for Mac. Improvements to symbol customization. New sym.txt files can line with and scale factors so that each symbol can be given different sizes.
Igpet paper to cite
Carr, MJ, and E Gazel, 2017. Igpet software for modeling igneous processes: examples of application using the open educational version. Miner Petrol 111:283–289 DOI 10.1007/s00710-016-0473-z
Igpet: a modeling and graphics package for Igneous Petrology
I began creating software for igneous petrology around 1972, while in graduate school. Once personal computers arrived, the software got complicated enough that I needed motivation to justify the time required for maintenance so, in 1985, I made a business, Terra Softa. I maintain three programs and provide them in a package called Igpet. Igpet is the core program, but there is also a Mixing program that calculates fractional crystallization and magma mixing using least squares, and a CIPW program. I consider the CIPW program freeware.
Examine the Igpet Gallery of images posted below. Click the down-pointing arrow on the right side. The image gallery is the quickest introduction to Igpet's capabilities. Some Word versions may lower the image quality so check the pdf files below for an accurate view of the PDF graphics output. The Windows graphics prior to 2020 were WMF files.
For a better idea of what is in Igpet, download the Igpet Paper (2017), the Igpet Manual and the Workbook below. Click the down-pointing arrows on the right side.
To Purchase Igpet
Igpet is available from RockWare Inc. and Michael Carr (Terra Softa Inc. is no more)
To order from RockWare, Click this link for RockWare
To order from me, use: carrvolcano at gmail dot com
PayPal is convenient for payment. I just ask PayPal to send an Invoice.
Checks and PO's also work.
Checks and POs for direct orders should be made out to:
Michael Carr
19 Esplanade Dr.
Somerset, NJ 08873 USA
Terra Softa's academic prices are:
$199 - single user (student discount available, contact MJ Carr via email)
$398 - site license for Windows or Mac
$498 - site license for both Windows and Mac platforms
$15 handling (waived if you send a check or use PayPal)
Terra Softa's standard prices for government agencies and industry are:
$299 for a single user (student discounts available from MJ Carr)
$498 for a site licence for Windows or Mac
$598 -for a double site license (i.e. for both Windows and Mac platforms)
$15 handling (waived if you send a check or use PayPal)
Upgrade prices
within two years:
academic/individual: $49 for a single user, $198 for a site license, $218 for a double site license
Gov't/Industry: $99 for a single user, $249 for a site license, $269 for a double site license
within 3-5 years
academic/individual: $149 for a single user, $298 for a site license, $338 for a double site license
Gov't/Industry: $249 for a single user, $398 for a site license, $438 for a double site license
beyond 5 years: $20 discount
Trial/Student version
Trial/Student version of Igpet Takes you to the student version of Igpet, called tIgpet. This version is free but the diagrams produced are jpg images, not vector graphics.
Here are a few of Igpet's features. The downloads below give a more complete picture.
Harker, Fenner, CMAS, SPIDER, and REE plots.
Discrimination diagrams for rock types and tectonic settings
Publication quality output for transfer to draw programs
Simple data format with easy transfer of data to/from Excel
CIPW norms within Igpet; fractional crystallization and magma mixing calculations in Mixing.exe
Simple X-Y plots that allow Melt modeling, AFC modeling, hyperbolic mixing, linear regression
Mixing, Melting and AFC modeling of multiple elements and isotope ratios simultaneously using the element suite in popular spider-diagrams - this is where Igpet gets powerful!