CMAS projections include O'Hara, Walker, Grove, Baker and Eggler etc. the Irvine and Baragar (1971) rock classification scheme, are stored in control files that can be expanded easily.
A calculator includes (+ - / *), Log, square, square root, ppm and chondrite functions.
ULTRAMAFIC TERNARY DIAGRAM SOFTWARE
IgPet - commercial software from RockWare draws most types of petrologic diagrams, including Harker, Fenner, triangular and log plots. 
An Isograd and Mixed-Volatile Exercise Using Data from the Ubehebe Peak Contact Aureole - William H. Wenner, University of Wisconsin at Oshkosh and Drew S. The Use of Visualization and Sketches of Thin Sections to Encourage a Better Understanding of Phase Diagrams: Binary and Ternary Phase Diagram Exercises - Jennifer M. Smith, University of Texas at San Antonio Ternary System: Determination of Crystal-liquid and Crystal-crystal Proportions Using the Lever and Tangent Rules - R. Constructing a Two Component Phase Diagram Using Experimental Data in the Hypothetical System A-B - R. Plagioclase Phase Diagram - Dexter Perkins, University of North Dakota. Homework on Volcanic Rock Chemistry and Binary Phase Diagrams - Jane Selverstone, University of New Mexico. Binary Eutectic In-class Exercise (Di-An) - Alan Glazner, University of North Carolina at Chapel Hill. Phase Diagrams from Kitchen Chemistry - John Brady, Smith College. Useful Phase Diagrams - John Brady, Smith College. An Introduction to T-X Phase Diagrams with problems - Dexter Perkins, University of North Dakota. Problem Set: Phase Diagrams - Dexter Perkins, University of North Dakota. Problem Sets/Labs/Activities on Simple Phase Diagrams Metamorphism of Calcareous and Ultramafic Rocks ( more info) - John Winter PowerPoint (Chapter 29). Index of Animated Phase Diagrams ( more info) - Ken Windom, Iowa State University. Magma Diversification ( more info) - John Winter PowerPoint (Chapter 11 - Magmatic Processes). Ternary Phase Diagrams ( This site may be offline.) - Steve Nelson, Tulane University. Binary and Greater Systems ( more info) - John Winter, Whitman College PowerPoint(Chapter 7). Binary Phase Equilibria Tutorial ( This site may be offline.) - Paul Asimow, CalTech. Two Component Phase Diagrams ( This site may be offline.) - Steve Nelson, Tulane University. Phase Rule and Binary Systems ( more info) - John Winter, Whitman College, PowerPoint (Chapter 6). C 12H 22O 11 ("sucrose")-H 2O (binary eutectic). CH 3CH 2OH-H 2O ("ethanol")-H 2O (diagram similar to plagioclase and olivine melting). NaCl-KCl (eutectic and solvus involving alkali halides). H 2O (solid-liquid-vapor relationships). Phase diagrams are also useful in other fields, including chemistry and engineering. The above examples are of phase diagrams commonly used by geologists. This is a diverse collection of phase diagrams, intended to be used by instructors when teaching petrology or mineralogy classes.Ĭlick image to enlarge. Fields on a pseudosection are labeled (specifying the equilibrium mineral assemblage) with the reaction lines unlabeled (although the specific reaction can be deduced). Pseudosections only include those reactions that affect a particular composition. Standard phase diagrams may include many reactions but, depending on its composition, a particular rock may only experience a few (or none) of them. Pseudosections are a type of phase diagram that shows the fields of stability of different equilibrium mineral assemblages for a single bulk-rock composition. Still others show how compositions of phases change under different conditions. Other diagrams (such as the one shown on the right), depict the relationships between a number of compounds having different compositions. Some phase diagrams (those for 1-component diagrams) depict relationships involving multiple phases having the same composition (for example, the relationships between the vapor, liquid and solid forms of H 2O). Standard phase diagrams show how phases or phase assemblages change as a function of temperature, pressure, phase composition, or combinations of these variables. These relationships are governed by the laws of thermodynamics. Standard phase diagrams are graphical representations of the equilibrium relationships between minerals (or others phases). Equilibrium phase relationships between calcite, quartz, wollastonite and CO 2.
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