Petrolog4 Tutorials

Tutorials published on this page are a supplement to the Petrolog4 manual, and are designed to assist users with understanding various aspects of the user interface that are focused on customising Petrolog4 for the needs and preferences of each user.

Some of the tutorials are linked to frequently asked questions.

Saving results and reading files

Choosing phase-melt models

Defining D values for trace elements

Setting Phase-Melt Models; I

This video describes how to set phase - silicate melt equilibrium models for calculations in Petrolog, and how to save calculation parameters to a file for future use.

Setting Phase-Melt Models; II

This video describes how to set corrections to the pseudo-liquidus temperatures calculated by phase - silicate melt equilibrium models developed for the anhydrous conditions for the effect of H2O in the melt.

Setting D values for trace elements; I

This video describes the basics of defining values of distribution coefficients (D) for trace elements, to be used during calculations.

Setting D values for trace elements; II

This video describes how Petrolog handles D values for trace elements that are incorporated into the selected phase-melt equilibrium models.

Structure Of Output Files; II

This video describes the structure of Petrolog4 output files saved during calculations for a case of partial fractional crystallisation of a composition that contains the major elements and trace elements (no volatile elements are present in the starting composition). It is recommended that this tutorial is watched after watching Structure Of Output Files (I).

Saving Results Of Calculations To Files

This video describes different options available in Petrolog4 for saving results of calculations to files.

Structure Of Output Files; I

This video describes the structure of Petrolog4 output files saved during calculations for a case of pure fractional crystallisation of a composition that contains only the major elements (no trace or volatile elements are present in the starting composition). It is recommended that this tutorial is watched after watching Saving Results Of Calculations To Files.

Loading Starting Compositions From Files

This video describes different options available for loading starting compositions from files

Structure Of Output Files; III

This video describes the structure of Petrolog4 output files saved during calculations for a case of partial fractional crystallisation of a composition that contains the major, trace and volatile elements. Crystallisation processes leads to separation of an immiscible sulphide melt and an H2O-CO2 fluid phase. It is recommended that this tutorial is watched after watching Structure Of Output Files (I) and Structure Of Output Files (II).

Setting Melt Oxidation State during calculations

This video describes how to set parameters that define and control melt oxidation state during calculations.

Controlling pressure during calculations

This video describes different options for controlling pressure during calculations.

Changing 'Extent Of Fractionation' settings

This video discusses implications of changing the 'Extent of Fractionation' settings during modelling crystallisation using Petrolog4. It is recommended that this tutorial is watched after watching tutorial Structure Of Output Files (I), (II) and (III).