New analytical techniques have recently come into play that transform raw electron microprobe X-ray images to maps of oxide concentration, which then are used to depict the spatial distribution of each mineral phase. I developed and I’m improving *XMapTools* (Lanari et al., 2014), a MATLAB©-based program for the X-ray and trace element LA-ICPMS images processing and thermobarometry. The data reduction involves several steps such as (i) analytical standardization, (ii) classification, (iii) structural formulae calculation and (iv) estimation of P-T conditions. In order to estimate P-T conditions of crystallization, *XMapTools* include a set of ~50 empirical and semi-empirical thermobarometry functions and can easily be coupled with forward (i.e. Gibbs free energy minimization) and inverse (i.e. multi-equilibrium) modeling calculations.

*More information: XMapTools website*

## GRTMOD

*GRTMOD* is a program used to model garnet growth and resorption in metamorphic rocks. The main routine of *GRTMOD* uses an inverse approach to fit the garnet compositions predicted by thermodynamic forward models with the one measured by the mean of standardized X-ray maps. The main goal of *GRTMOD* is to optimize pressure, temperature and the local effective bulk composition in order to accurately model the successive growth zones of natural garnet. The Gibbs free energy minimization is done with *Theriak-Domino* (link), originally using the add-on *TheriakD* (link).

*More information: GrtMod website*

## Bingo-Antidote (XThermoTools)

Primarily Bingo-Antidote can be described as an inverse Theriak (link), because it uses the information provided by XMapTools to calculate the most likelihood P-T equilibrium conditions for a given metamorphic assemblage. The new strategy combines the strengths of forward Gibbs free energy minimization models with the intuitive approach of inverse thermobarometry models. Bingo-Antidote is available as a standalone program, or embedded into XMapTools using the add-on XThermoTools. The *public* version of XThermoTools is not expected to be published before 2018-2019.

## SSAC & Trinity

*SSAC* is a program for the SIMS data processing and *TRINITY* a program to process LA-ICP-MS data. These programs allows to calculate U-Th-Pb ages for Allanite and Zircon from SIMS and LA-ICP-MS spot-analyses. *TRINITY* was developed by M. Burn (PhD student, University of Bern).

## Meamp

Meamp is a program for for multi-equilibrium calculations using different thermodynamic datasets and solid solution models. This program allows standard state properties and solid solution parameters adjustement by nonlinerar regression using experimental or natural data. A description of *Meamp* is available, in french, in my Ph.D. thesis (download here). This program is not available for public use.