Info

• MAGEMinApp.jl Tips

• 1. General setup tab

  • 1.1 General parameters panel

  • 1.2 Contributors panel

  • 1.3 External libraries panel

  • 1.4 Help and contact panel

• 2. Phase diagrams tab

  • 2.1 Setup panel

  • 2.2 Bulk-rock composition panel

  • 2.3 Trace-element composition panel

  • 2.4 General parameters panel

• 3. Diagram sub-tab

  • 3.1 Informations panel

  • 3.2 Display options panel

  • 3.3 Isopleths panel

  • 3.4 Draw path panel

  • 3.5 Classifications panel

• 4. IntersecT sub-tab

  • 4.1 Setup panel

  • 4.2 Results panel

  • 4.3 Options panel

• 5. Trace-elements sub-tab

  • 5.1 REE spectrum panel

  • 5.2 General options panel

  • 5.3 Display options

  • 5.4 TE Isopleths

  • 5.5 Export figure and Phase assemblages panels

• 6. PTX path tab

  • 6.1 Configuration panel

  • 6.2 Bulk-rock composition panel

  • 6.3 Trace Elements panel

  • 6.4 Path definition panel

  • 6.5 Path options panel

  • 6.6 PTX save and export

• 7. General information tab

• Trace-element Kd models

MAGEMinApp.jl Tips

Tip

• Mind that when performing a calculation progress is indicated either by the progress bar at the top right corner of the interface, or by changing the name of your web-browser tab (where MAGEMinApp is opened) to Updating...

• Once a calculation is launched, avoid performing other actions as it may lead to calculation failure

MAGEMinApp.jl interface

The graphic user interface includes 4 main tabs: one for app-wide settings, two for phase equilibrium calculations, and one for supporting reference data.

App-wide settings that apply across every other tab: mineral naming convention, pressure display unit, output directory, plus contributors, third-party libraries and support/contact information.

Available thermodynamic databases are presented here. All other options and parameters are detailed below.

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1. General setup tab

App-wide settings that apply across every other tab.

1.1. General parameters panel

General parameters	Caption
	Mineral names - phase-naming convention used throughout the app: Legacy (MAGEMin's internal codes, e.g. g, ctd, mu) or Warr (2021) (IMA-CNMNC symbols, e.g. Grt, Cld, Ms) Pressure unit - display and input unit for pressure across every tab: kbar or GPa Output directory - folder used for CSV/state exports; edit the path and click Apply to change it (feedback message shown below)

Warning

IntersecT (§4) matches phases between a measurement file and the computed grid using the Warr (2021) symbols. Set Mineral names = Warr (2021) here before using it, otherwise no phase will be found in common.

1.2. Contributors panel

List of people who contributed to MAGEMinApp, together with app/version information.

1.3. External libraries panel

Third-party tools integrated into MAGEMinApp, currently IntersecT (Nerone et al., 2025, doi:10.1016/j.cageo.2025.105949) - an open-source Python package for statistically quantifying the quality of fit in isopleth thermobarometry.

1.4. Help and contact panel

Links for documentation, reporting issues on GitHub, the GitHub repository, and the Discord server.

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2. Phase diagrams tab

2.1. Setup panel

Setup

Caption

Thermodynamic database - select among available thermodynamic databases, grouped as: Published: mp (Metapelite, White et al., 2014), mb (Metabasite, Green et al., 2016), ig (Igneous, Green et al., 2025, after Holland et al., 2018), igd (Igneous, Su et al., 2026, after Tomlinson & Holland, 2021), igad (Igneous alkaline dry, Weller et al., 2024), um (Ultramafic, Evans & Frost, 2021) Mantle: mtl (Mantle, Holland et al., 2013), sb11/sb21/sb24 (Stixrude & Lithgow-Bertelloni, 2011/2021/2024) Custom: ume (Ultramafic extended), mpe (Metapelite extended), mbe (Metabasite extended), all (Global TC dataset - combines every database's oxide set; use Preset below to quickly restrict phases to one database's default set) Dataset - select among available thermodynamic datasets for the chosen database Preset (Global TC dataset only) - quickly restrict the solution-phase selection to match one of the standalone databases (none, Metapelite, Metabasite, Igneous, Igneous alkali-dry, Ultramafic) instead of deselecting phases manually Phase selection - expand to activate or deactivate individual solution and pure phase models Diagram type - P-T, P-X, T-X, PT-X, or T-T (polymetamorphic) P-T path (PT-X diagram) - table of pressure-temperature points defining the path when Diagram type = PT-X diagram; add rows with "Add new point" or drag-and-drop a P;T CSV file onto "Drag and drop path" to replace the whole path (pressure always given in kbar in the file; see the "Bulk-rock input file" section on the General information tab for the general CSV convention) Solidus H₂O-saturated - saturate the first melt in water at the solidus (true/false) Additional H₂O [mol%] - amount of extra H₂O added when solidus saturation is active (0–100) Clinopyroxene - switch between Omphacite (Omph) and Augite (Aug) for the metabasite database Limit Ca-opx - enforce a maximum Ca content in orthopyroxene (0–1; default 0.5) TE predictive model - enable trace-element partitioning at suprasolidus conditions (true/false) KD model - lattice-strain Kd database: OL (O. Laurent, 2012) or CO (J. Cornet, 2019) Zr saturation - zircon saturation model: none, WH (Watson & Harrison, 1983), B (Boehnke et al., 2013), CB (Crisp & Berry, 2022) P₂O₅ saturation - fluorapatite saturation model: none, Klein26, Tollari06, HWBea92 S saturation - sulfide saturation model: none, Liu07, Oneill21 CO₂ saturation - CO₂ fluid saturation model: none, SY26 (Sun & Yao, 2026) EODC - empirical oxide–distribution coefficient model: KP, IL, B, AV; with an associated ratio field (0–1) Upload Kd's - drag-and-drop zone to load a custom Kd database file Pressure [kbar] - minimum and maximum pressure range for the diagram Temperature [°C] - minimum and maximum temperature range for the diagram Fixed pressure / temperature - single pressure or temperature value for P-X and T-X diagram types Initial grid subdivision - sets the starting grid resolution (2–9; default 4, yielding a 16×16 grid) Refinement type - refine on phase boundaries (ph) or dominant end-members (em) Refinement levels - number of adaptive mesh refinement levels applied (default 3) Boost mode - use the previous refinement level as an initial guess for the next (true/false) Buffer - oxygen fugacity buffer or fixed oxide activity: none, QFM, MW, IW, QIF, CCO, HM, NNO, aH₂O, aO₂, aFeO, aMgO, aAl₂O₃, aTiO₂ Solver - Gibbs energy minimization algorithm: pge (projected gradient), lp (linear programming/Legacy), hyb (hybrid) Verbose - level of output in the Julia terminal: -1 (none), 0 (light), 1 (full) Seismic averaging - averaging scheme for seismic velocities: 0 (VRH – Voigt-Reuss-Hill), 1 (HS – Hashin-Shtrikman) Weight factor - mixing weight between Voigt and Reuss bounds (0–1; default 0.5) Specific Cp - 0: G₀ (no latent heat); 1: G_system (includes latent heat of reaction); selecting G_system forces Solver to Legacy (see "Latent heat of reaction" in the Phase diagrams tutorials)

2.2. Bulk-rock composition panel

Setup

Caption

System unit - display and input the bulk-rock composition in mol% or wt% Drag and drop - upload a bulk-rock CSV file or drag and drop it onto the dashed upload zone Bulk-rock list - select from pre-defined or previously uploaded bulk-rock compositions for the chosen database; a second list appears for the right-hand composition when Diagram type needs two end-members (P-X, T-X, PT-X) Composition table - editable table showing the loaded oxide composition; values can be modified directly Oxide coverage alert - warns if the selected composition does not cover every oxide required by the currently selected phases (only checked when Database = Global TC dataset (all)) Buffer offset - shift the oxygen fugacity relative to the selected buffer (–50 to +50; default 0)

2.3. Trace-element composition panel

When TE predictive model = true, a third collapsible panel appears below the bulk-rock panel:

Trace-element panel	Caption
	Drag and drop - upload a custom trace-element file (CSV with element and μg/g columns) TE composition list - select from built-in trace-element compositions TE table - editable table showing element concentrations in μg/g (ppm)

2.4. General parameters panel

General parameters

Caption

Title - set the title for the phase diagram; use Update/Reset buttons to apply or revert Compute phase diagram - launch the calculation (green button) Save/Load diagram - save or reload a computed diagram together with all selected options (modal dialogs with filename input) Advanced options - load custom W interaction parameters from a file path Directory window - read-only field showing the folder where exported CSV data will be saved

Note

Contributors, external libraries and help/contact information moved to the top-level 1. General setup tab.

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3. Diagram sub-tab

The Diagram sub-tab has a right-hand sidebar with five tabs: Informations, Display options, Isopleths, Draw path, and Classifications.

3.1. Informations panel

Informations

Caption

Computation info - read-only summary of the last computed point (phase assemblage, conditions, fractions) Pie unit - unit for the pie chart: mol%, wt%, or vol% Pie chart - shows the modal fractions of stable phases at the selected point Transfer point as bulk - transfer the composition of Solid, Melt, or Whole-rock at the selected point to the bulk-rock composition panel; provide a name and click Transfer Save point - save the full point information to a CSV or text file (`csv file` / `Text` buttons) Save all - save all computed points to a CSV file Export references - export citations for the active models as a BibTeX file Statement of code availability - expandable card; click "Retrieve statement" to display a ready-to-use statement for methods sections (copyable) Display point snippet for MAGEMin_C - expandable card showing the equivalent MAGEMin_C.jl code to reproduce the selected point calculation (copyable)

3.2. Display options panel

Display options

Caption

Field - select the scalar field to display as a color map, e.g.: Hash, Variance, #Phases, G_system, entropy, enthalpy, s_cp, alpha, log10(fO2), log10(dQFM), aH2O, aFeO, aMgO, aAl2O3, aSiO2, aTiO2, melt viscosity (eta_M), ρ_system/ρ_solid/ρ_melt/Δρ, solid and melt mol/wt/vol fractions, Vp, Vs, Vp/Vs, Vp_S, Vs_S, Vp_S/Vs_S, Vp_cor, Vs_cor (seismic-corrected), bulk residual norm, computation time, status. The same field catalog is reused by the Isopleths "Other" type, the Draw path field profile mode, and the PTX path diagram below Show grid - display the adaptive mesh refinement grid (true/false) Minimum field size - minimum number of cells for a field to receive a phase label (0–1024; default 16) Show phase label - show or hide phase assemblage labels Show reaction lines - show or hide phase boundary lines Reaction line style editor - select a solution phase, then set its reaction line style (solid, dot, dash, longdash, dashdot, longdashdot), width (0–10 px, default 0.75), color and label size; Save/Reset/Update apply the changes for that phase Colormap - choose among: blackbody, Blues (default), cividis, Greens, Greys, hot, jet, RdBu, Reds, viridis, YlGnBu, YlOrRd, plus the R.J. Tamblyn set: Pink, Sunset, Dawn, Almeria, Almeria Extended, Almeria Red, Almeria Blue Value range - manual min/max for the color scale Colormap range - slider restricting which portion of the colormap is used (1–9) Set min to white - set the minimum value of the field to white (incompatible with Colormap range) Reverse colormap - invert the colormap direction Smooth colormap - interpolation quality: fast, best, or none

Note

Per-phase stable-color customization ("Modify phase colors") is configured from the PTX path tab (§6) and applies app-wide, not from this panel.

3.3. Isopleths panel

Isopleths

Caption

Isopleth type - Pure phase (pp), Solution phase (ss), or Other (of - system-level field, using the same Field catalog as Display options) Phase - select the phase to contour (solution-phase type) Field (solution-phase type) - Mode, Oxide composition, End-member mode, Mg#, Calculator (oxides), Calculator (apfu), or Calculator (site fractions) Remove excess fluid - exclude fluid from the normalization when computing fractions (true/false) Unit - mol, wt, or vol Custom calculator - enter an expression (e.g., Mg / (Mg + Fe) for apfu, MgO / (MgO + FeO) for oxides) using oxide names, end-member names, or site fractions (available sites are listed above the input for the site-fraction calculator), plus a custom name for the field Range: min / step / max - define the isocontour interval Line style - solid, dot, dash, longdash, dashdot, longdashdot Line width - line thickness in pixels (0–10) Color - color picker for the isocontour lines Label size - font size for isocontour labels (6–20) Add - add the configured isocontour to the diagram Displayed / Hidden lists - manage which isopleths are currently shown or hidden Hide / Hide all / Show / Show all / Remove / Remove all - batch management buttons Export isocontour(s) - export the currently displayed isopleths (requires at least one to be displayed)

3.4. Draw path panel

This panel allows you to manually trace a P-T path directly on the phase diagram by clicking points, then extract the phase or field evolution along it.

Draw path

Caption

Record - toggle on to start recording clicked points on the diagram as path nodes Point counter - displays the number of recorded points Display - what to compute along the path once generated: Phase fractions (stacked area chart) or Field profile (line plot of one field from the Display options catalog, selected via an additional Field dropdown) Clear - remove all recorded points Remove last - delete the most recently added point System unit - unit for the generated path data: mol, wt, or vol (Phase fractions mode) Generate - compute the phase fractions/field values and compositions along the recorded P-T path Path table - read-only table showing the recorded path points (#, P [kbar], T [°C]) Export to PTX path - send the recorded points as the starting path definition of the PTX path tab (§6.4) Phase fractions / field profile plot - chart along the generated path (expandable canvas)

3.5. Classifications panel

Note

Marked "Work in progress" in the app.

Computes and displays TAS and AFM classification diagrams for the melt composition across the computed grid.

Classifications	Caption
	Compute TAS & AFM - compute the classification diagrams for the melt composition at every grid point Display - open the classification canvas (TAS, TAS with volcanic-rock fields, and AFM diagrams)

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4. IntersecT sub-tab

Implements quantitative isopleth thermobarometry (Nerone et al., 2025, doi:10.1016/j.cageo.2025.105949): for every grid point of a previously computed phase diagram, the modelled a.p.f.u. composition of one or several mineral phases is compared to a measured (e.g. EPMA) composition, returning a goodness-of-fit map.

Warning

Requires Mineral names = Warr (2021) in 1.1 General parameters panel - IntersecT matches phases between the measurement file and the computed grid using Warr (2021) symbols.

The sub-tab is organized in three columns: Setup, Results (Diagrams / Log), and Options.

4.1. Setup panel

Setup

Caption

Run IntersecT - launch the calculation for the currently loaded measurement file and selected phases Measurement file - drag-and-drop a CSV file with measured mineral compositions; the status line reports the loaded file name once parsed Stable phases - checklist automatically populated with the phases found both in the measurement file and on the computed grid; uncheck a phase to exclude it Analysis type - WDS spot, WDS map, or EDS; used to auto-estimate analytical uncertainty when the measurement file does not already provide one Export references - export citations for MAGEMin, the thermodynamic database and IntersecT as a BibTeX file

4.2. Results panel

Results

Caption

Diagrams tab - main "Display" dropdown (populated after Run IntersecT: Qcmp weighted/unweighted, redchi2 total, per-phase and per-element Qcmp/redchi2 fields) and diagram; two smaller "Display" dropdown + diagram pairs below let you compare two more fields side by side Log tab - full text report: for each selected phase and measured element, the (P,T) location and value of the maximum Qcmp and minimum reduced-χ², the overall weighted/unweighted optimum, and any warnings

4.3. Options panel

Options

Caption

Color options - Colormap (same list as Display options plus RdYlGn, default RdBu), Value range, Colormap range, Set min to white, Reverse colormap, Smooth colormap Overlay options - Show grid, Show phase label, Show reaction lines Isocontours - Type - Measurements (contour a modelled a.p.f.u. field for a Phase/Element pair from the measurement file) or Field (contour one of the IntersecT result fields, available after Run IntersecT) Isocontours - Range / style - Min/Step/Max, Line style, Line width, Color, Label size, then Add Displayed / Hidden lists - manage isocontours (Hide / Hide all / Remove / Remove all, Show / Show all), exactly as in the Isopleths panel

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5. Trace-elements sub-tab

The Trace-elements sub-tab becomes active after a phase diagram has been computed with TE predictive model = true. It displays element distributions and saturation fields across the phase diagram.

5.1. REE spectrum panel

Open by default, above the main diagram.

Rare Earth Elements spectrum	Caption
	Show - ree (rare earth elements only) or all (every predicted trace element) Norm. - normalization reference: bulk or chondrite Spectrum plot - click any suprasolidus grid point to display its trace-element spectrum; double-click a phase in the legend to isolate it

5.2. General options panel

General options	Caption
	Load/Reload trace-elements - (re)load the trace-element prediction for the currently computed diagram Save point - save the TE data at the clicked point to CSV Save all - save TE data for all computed points to CSV Export references - export BibTeX citations for the active Kd and saturation models

5.3. Display options

TE Display options

Caption

Field type - choose the category of field to display: Zircon, Sulfide, Fluorapatite, CO₂ saturation, Trace element Field - specific variable within the selected field type: Zircon: Sat_Zr_liq [ppm], zrc_wt [wt fraction] Sulfide: Sat_S_liq [ppm], sulf_wt [wt fraction] Fluorapatite: Sat_P2O5_liq [ppm], fapt_wt [wt fraction] CO₂ saturation: Sat_CO2_liq [ppm], fl_CO2_wt [wt fraction] Trace element: concentration in the melt via Field builder Field builder (Trace element only) - enter a custom expression using [M_X] for element X in the melt (e.g., [M_Dy] / [M_Yb]); set normalization (none, bulk, chondrite) and click Compute and display Available phases - list of phases for which TE concentrations are available Show reaction lines / Show grid / Show phase label - same diagnostic overlays as the phase-diagram Display options Colormap - same list as 3.2 Display options panel (no RdYlGn); default RdBu Value range - manual color scale min/max Colormap range - slider restricting the colormap portion used Set min to white / Reverse / Smooth - same as in the phase diagram Display options (Reverse colormap defaults to true here)

5.4. TE Isopleths

The Isopleths panel in the Trace-elements sub-tab works identically to the one in the Diagram sub-tab but operates on TE and saturation fields (Zircon, Sulfide, Fluorapatite, CO₂ saturation, Trace element) instead of thermodynamic fields; for the Trace element type it exposes a Calculator expression plus a normalization setting (bulk, chondrite, none) and a custom field name.

5.5. Export figure and Phase assemblages panels

Side panels	Caption
	Export figure - "Export all layers" saves each TE field layer as a separate image file in the output directory Phase assemblages - table of stable phase assemblages on the grid, with a clipboard button and a "Clear" button to reset any highlighted assemblage

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6. PTX path tab

The PTX path tab is divided into a left configuration panel and a central results area. It supports all P-T-X path modes from the same interface, including isentropic paths (previously a separate tab; merged in v1.2.1).

6.1. Configuration panel

Configuration

Caption

Thermodynamic database / Dataset / Preset / Phase selection - same options as the phase diagram Setup panel Clinopyroxene / Limit Ca-opx - same as the phase diagram Setup panel Buffer - same oxygen fugacity buffer / fixed oxide activity list as the phase diagram Setup panel Variable buffer - allow the buffer offset to vary per path point via a Buffer column in the Path definition table (true/false) Solver - pge (projected gradient), lp (Legacy), or hyb (Hybrid); default Hybrid Specific Cp - 0: G0 (no latent heat), 1: G_system (with latent heat); selecting G_system forces Solver to Legacy Verbose - none, light, or full Julia terminal output Seismic averaging scheme - VRH (Voigt-Reuss-Hill) or HS (Hashin-Shtrikman) Weight factor - mixing weight between Voigt and Reuss bounds (0–1; default 0.5) Seismic correction - apply melt-content velocity correction (Clark et al., 2017 after Takei, 1997) (true/false) Aspect ratio - melt-pocket aspect ratio used by the seismic correction (0–1; default 0.3; visible when Seismic correction = true) Anelastic correction - apply anelastic attenuation correction (Behn et al., 2009; Cobden et al., 2018) (true/false; visible when Seismic correction = true) Anelastic model - Dry mantle, Damp mantle, or Wet mantle (saturated) attenuation strength (visible when Anelastic correction = true) Shallow correction - fixed-aspect-ratio (0.25), depth-dependent porosity correction for shallow conditions (true/false; visible when Seismic correction = true) Fluid as melt - treat any free fluid phase as melt for the seismic corrections (true/false; visible when Seismic correction = true)

6.2. Bulk-rock composition panel

Same controls as the phase diagram bulk-rock panel (§2.2). When Assimilation = true, a second bulk-rock composition panel appears for the assimilated end-member.

6.3. Trace Elements panel

Appears when TE predictive model = true in Path options.

Trace Elements (PTX)

Caption

KD model - lattice-strain Kd database: OL (O. Laurent, 2012) or CO (J. Cornet, 2019) Zr saturation - none, Watson 1979 (WH), or Blundy 2022 (CB) S saturation - none or Liu 2021 (Liu07) P₂O₅ saturation - none or Tollari 2006 CO₂ saturation - none or SY26 (Sun & Yao, 2026) Upload trace-element file - drag-and-drop a CSV file with element concentrations Initial TE bulk composition [μg/g] - editable table with element concentrations; pre-populate from built-in database dropdown Assimilant TE bulk composition [μg/g] - second TE table for the assimilated end-member (visible when Assimilation = true)

6.4. Path definition panel

Path definition

Caption

P-T path table - pressure-temperature points defining the path (P in kbar or GPa depending on the pressure-unit setting, T in °C); an Add [%] column appears when Assimilation is enabled and a Buffer column when Variable buffer is enabled (§6.5 Path options panel) Add new point - append a new row to the path table Drag and drop path - upload a CSV file to replace the whole path table at once; header P;T (required) plus optional Assim;Buffer columns (default 0.0 if omitted) - pressure always given in kbar in the file, converted to the current display unit Find solidus / Find liquidus - bisection search for the solidus/liquidus temperature at a given pressure, for the current bulk-rock composition Get O at liquidus - adjust the bulk O content so the selected buffer is stable at the liquidus Add phase extraction - opens the "Advanced path definition" panel to cap a mineral's modal proportion along the path: pick a Phase, Unit (mol/wt/vol) and Threshold [%], then Add column; once a step's proportion of that phase exceeds the threshold, only the excess is removed from the bulk carried into the next step. Re-minimize after capping (true/false) controls whether the capped point itself is re-equilibrated with the post-extraction bulk (pinning the displayed proportion at the threshold) or left showing the pre-cap value (default). Configured threshold columns can be removed individually via Remove phase threshold

6.5. Path options panel

Path options

Caption

Resolution - number of calculation steps between two consecutive path points (1–1024; default 32) P-T-X mode - Equilibrium, Fractional melting, or Fractional crystallization Assimilation - enable progressive addition of a second bulk-rock composition (true/false) TE predictive model - enable trace-element partitioning along the path (true/false) Cumulate/Connectivity unit - basis (mol, wt, or vol) used for the assimilation blend and the melt/solid extraction mass balance; only shown in fractional melting/crystallization mode Connectivity threshold [mol%] - melt fraction above which melt is extracted during fractional melting (0–100; default 7); only visible in fractional melting mode Residual rock fraction [mol%] - fraction of solid entrained by the fractionating melt during fractional crystallization (0–100; default 0); only visible in fractional crystallization mode Isentropic - compute an isentropic (constant-entropy) path using bisection on temperature (true/false) Solidus H₂O-saturated - saturate the first melt in water at the solidus (true/false) Additional H₂O [mol%] - extra H₂O added at water saturation (visible when Solidus H₂O-saturated = true) Compute path - launch the P-T-X path calculation (green button)

6.6. PTX save and export

All export options are located in the Path options panel:

Button	Content
Save path → csv	Full path: P, T, phase fractions and compositions at each step
Save path → csv line	Same but all steps on a single row
Save cumulate → csv file	Composition of the cumulate (extracted solid) at each step
Save trace elements → csv file	TE concentrations in melt, solid and minerals at each step (requires TE computation)
Save cumulate TE → csv file	Integrated cumulate TE composition at each step (requires TE computation)
Export references → bibtex file	BibTeX citations for active models and database

Note

• The Save trace elements and Save cumulate TE buttons are only active after trace elements have been computed.

• The export path is printed in the Julia terminal.

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7. General information tab

Provides static reference data across three sections:

• Solution phases table - name, abbreviation, and solvus flag for all solution phases in the selected database (filterable, 16 rows per page)

• End-members table - end-member name, abbreviation, and stoichiometric formula (filterable, 16 rows per page)

• CSV bulk-rock format - example table showing the required column structure for bulk-rock input files (title, comments, db, sysUnit, oxide columns, optional _frac2 variants), followed by the full field documentation including the thermodynamic dataset acronym table (mtl, mp, mb, ig, igd, igad, um, sb11, sb21, sb24, ume, mpe, mbe, all)

• Trace-element Kd tables - three tabs subdivided by SiO₂ content of the melt (SiO2 < 52 wt%, 52 wt% <= SiO2 < 63 wt%, 63 wt% <= SiO2); each shows the element × mineral Kd matrix (filterable, 32 rows per page)

• Calculation details - static reference cards describing phase deactivation logic, oxide activity formulation, water saturation methodology, specific heat capacity calculation, the site fraction calculator, and seismic velocity corrections (melt/anelastic/shallow, cross-referencing the PTX path Configuration panel controls)

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Note

Trace-element partitioning model descriptions and Kd tables are documented in the Thermodynamic Databases page.