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Petrology Activities and Examples Collection

This is a collection of educational resources used in igneous and metamorphic petrology courses. The collection includes lab exercises, classroom activities, problem sets and more. The purpose of this collection is to allow for the sharing of materials within the community of petrology teachers. You can



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Weathering of Igneous, Metamorphic, and Sedimentary Rocks in a Semi-Arid Climate - An Engineering Application of Petrology part of Teaching Examples
Wendy Harrison, National Science Foundation; Ric Wendlandt, Colorado School of Mines
Students examine soils developed on igneous, metamorphic, and sedimentary rocks near Denver, Colorado. The 2-week exercise includes sample collection, description, and preparation, determining clay mineralogy by ...

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Volcanoes Writing Assignment part of Cutting Edge:Introductory Courses:Activities
Julie Baldwin, University of Montana-Missoula, The
Students write an original work of fiction pertaining to the geology of stratovolcanoes and their eruptive hazards.

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Working with Electron Microprobe Data from a High Pressure Experiment - Calculating Mineral Formulas, Unit Cell Content, and Geothermometry part of Teaching Examples
Brandon Schwab, Humboldt State University
In this problem set students use electron microprobe analyses of a peridotite partial melting experiment to determine mineral formulas, calculate unit cell content, plot results on a classification diagram, and use ...

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Introduction to Gibbs Energy part of Teaching Examples
Dexter Perkins, University of North Dakota-Main Campus
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.

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Igneous Rock Compositions and Plate Tectonics part of Teaching Examples
Allen Glazner, University of North Carolina at Chapel Hill
In this exercise, students use whole-rock major- and trace-element compositions of igneous rocks from a variety of tectonic settings and locations to explore the importance of plate setting in determining magma ...

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Mass Balance and Mineral Reactions part of Teaching Examples
Dexter Perkins, University of North Dakota-Main Campus
This is a short exercise to make sure that students understand mass balance and how the different starting assemblages may lead to different results after metamorphism. It is quick but not trivial.

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Petrography and Petrogenesis of a Mid-Ocean Ridge Lava Suite part of Teaching Examples
Matthew Smith, University of Florida; Mike Perfit, University of Florida
This activity is designed to accompany a set of thin sections available from the authors. Students investigate mid-ocean ride basalt petrography and relate observed mineralogic changes to relevant phase diagrams ...

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Schreinemakers Analysis - Problem #4 part of Teaching Examples
Dexter Perkins, University of North Dakota-Main Campus
This is a straightforward Schreinemakers analysis involving two invariant points.

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T-X Phase Diagrams part of Teaching Examples
Dexter Perkins, University of North Dakota-Main Campus
This is a 15 page tutorial and problem set designed to get students familiar with T-X diagrams, their implications, and uses.

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Metamorphism of siliceous dolostone: An example from the Alta stock, Utah part of Teaching Examples
Cameron Davidson, Carleton College
In this exercise students study the low variance mineral assemblages from the contact aureole of the Alta stock to learn how rock and fluid compositions control mineral assemblages during contact metamorphism.

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Physical Geology: Idaho Field Trip part of Cutting Edge:Introductory Courses:Activities
Simon Kattenhorn, University of Idaho
Optional field trip to local sites of geologic interest/relevance.

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Scientific debate: Mantle plumes part of Cutting Edge:Deep Earth:Activities
Brennan Jordan, University of South Dakota
A structured format for a debate of the mantle plume hypothesis and alternative hypotheses with supporting materials.

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Deciphering complex fluid-mineral interactions in the palm of your hand part of Cutting Edge:Complex Systems:Teaching Activities
Barb Dutrow, Louisiana State University
This exercise uses polished rock slabs containing veins sealed by copper-bearing minerals to understand the feedback effects in complex fluid-rock systems. By determining the minerals and their relative timing, the ...

Compatibility Diagram 3: Fo-Tc-Etc part of Teaching Examples
Dexter Perkins, University of North Dakota-Main Campus
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 Teaching Examples
Dexter Perkins, University of North Dakota-Main Campus
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 ...