Peritectic Phase Diagram part of Petrology:Teaching Examples

An exercise to help students figure out what is going on with peritectic phase diagrams. It is NOT trivial.

Theriak-Domino Exercise part of Petrology:Teaching Examples

This multidimensional project involves using several different computer programs to calculate and interpret phase diagrams and pseudosections. So, students learn lots of skills at the same time. But, an overarching ...

Introduction to Gibbs Energy part of Petrology:Teaching Examples

This is a short project that can be used in-class or as homework. It involves just a few questions and it is intended to help students understand the idea of Gibbs free energy.

Simple Peritectic Exercise: Leucite-Quartz part of Petrology:Teaching Examples

This can be done as an in-class exercise (I use it as a group project) or as homework. It is intended to help students learn how to interpret and use peritectic diagrams.

Calculating a Simple Phase Diagram: Diamond=Graphite part of Petrology:Teaching Examples

This is a very short exercise designed to get students to understand how the Gibbs energy equation is used to calculate the location of a reaction in P-T space. I use it in-class and have students work on it in ...

The Nature of Science and Scientific Fraud part of GeoEthics:Activities

Dexter Perkins, University of North Dakota Summary There are two parts to this exercise but they are stand-alone if desired. The first part deals with the nature of science: what is science, what does it involve, ...

Collection of PT Phase diagram exercises part of Petrology:Teaching Examples

I am always needing more phase diagrams exercises so my students can practice problem solving. This collection includes 5 different exercises that can be used for homework, in-class, or for quizzes or exams.

Water Development: A Philosophical and Ethical Issue part of GeoEthics:Activities

Dexter Perkins, University of North Dakota Summary This is a seven part module that deals with water development. The goal is to get students thinking about water development in terms of its appropriateness, and ...

Introduction to Ternary Phase Diagrams part of Petrology:Teaching Examples

Includes a number of hands-on exercises involving ternary phase diagrams. Some questions are quite easy, some are not.

TWQ Exercise part of Petrology:Teaching Examples

This is an exercise using TWQ to generate a phase diagram. It can be used as homework but is better done in a group.

Making Good Looking Diagrams from Theriak-Domino Output part of Petrology:Teaching Examples

This is a complementary exercise that follows "Using Theriak-Domino to Calculate Equilibrium Phase Diagrams." I have students do this because it brings closure to the other exercise and it teaches ...

Compatibility Diagram 1: Dsp-Py-Qz-Ka-H2O part of Petrology:Teaching Examples

One of three compatibility diagrams I use in class. This is a short activity to introduce students to compatibility diagrams (triangular diagrams showing stable assemblages) and how tie lines change when a reaction ...

Compatibility Diagram 3: Fo-Tc-Etc part of Petrology:Teaching Examples

One of three compatibility diagrams I use in class. This is a bit more complicated than #1 and #2. It involves a projection from H2O and non-standard corners on the composition triangle.

Compatibility Diagram 2:Tc-En-Etc part of Petrology:Teaching Examples

One of three compatibility diagrams I use in class. This is a short activity that has students construct several compatibility diagrams in different fields on a phase diagram. This, in turn, can be followed by ...

Plane Groups part of Mineralogy:Activities

Studying plane groups is a good way to introduce crystal systems, point groups, lattices, symmetry operators, etc. All is in 2-D, but it is easy to tell students that the principles are the same in 3-D. I provide, ...

Three Component Systems part of Petrology:Teaching Examples

This exercise involves plotting mineral compositions on triangular (3-component diagrams) and using those diagrams to determine possible mineral reactions.

Phase Diagrams and Chemographic Projections part of Petrology:Teaching Examples

This exercise is a good way to get students thinking about the phase rule, metastable and stable reactions and phase diagrams. It can be done in class or as homework.

Simple Eutectic Exercise: Diopside-Anorthite part of Petrology:Teaching Examples

This exercise can be done in-class (I use it as a group activity) or as homework. It is a quick way to get students to figure out how to use and interpret simple eutectic diagrams.

Three Component Systems and Their Reactions part of Petrology:Teaching Examples

This exercise involves plotting mineral compositions on triangular (3-component diagrams) and using those diagrams to determine possible mineral reactions.

Plagioclase Phase Diagram part of Petrology:Teaching Examples

This is a short exercise aimed at evaluating whether students understand how to interpret the Ab-An phase diagram.

Plotting Compositions in 2-D and 3-D Space part of Petrology:Teaching Examples

This is a fairly short exercise that can be used for an in-class cooperative learning project or as homework. It includes LOTS of explanation and so is sort of a tutorial. I use it in my petrology class because it ...

Naming Igneous Rocks part of Petrology:Teaching Examples

This project is intended to introduce students to the IUGS rock classification scheme. Samples come from the Wards Collections (which many schools have). Students are provided with both hand specimens and thin ...

Growing Crystals on a Microscope Stage part of Mineralogy:Activities

Many compounds crystallize rapidly from evaporating solutions, and many can be crystallized from melts. Because of this, it is possible to do simple crystallization experiments and to watch crystals grow over short ...