Compositional Diversity in Volcanic Suites part of Integrating Research and Education:EarthChem:Compositional Diversity in Volcanic Suites
Kent Ratajeski Published Oct. 26, 2004. Description In this exercise, students use whole-rock major- and trace-element compositions of volcanic rocks to explore the origins of compositional variation in igneous ...

Part 5 - Decide Which Variation Diagrams to Plot part of Integrating Research and Education:EarthChem:Compositional Diversity in Volcanic Suites
Background Obviously, variation diagrams are alot more useful than looking at tables of whole-rock data from a suite of samples. At the same time, the proper use of variation diagrams is definitely an acquired ...

Create a Variation Diagram part of Integrating Research and Education:EarthChem:Compositional Diversity in Volcanic Suites
In any step, click the 'Show me' link to reveal extra information. A sequence of 'Show me's indicates a series of steps. If you prefer a printout of the full set of instructions for this part, ...

Part 4 - Prepare the Data for Graphing part of Integrating Research and Education:EarthChem:Compositional Diversity in Volcanic Suites
Check for rows of anomalous data At this point, it is a good idea to check the data for rows that you do not want to include. Remember that GEOROC datasets include all data published, including partial analyses, ...

Step-By-Step Instructions part of Integrating Research and Education:EarthChem:Compositional Diversity in Volcanic Suites
The instructions for this exercise have 7 main parts. Click each part name to see the steps in that part. The instructions for this chapter and the accompanying screenshots were developed using a Macintosh ...

Part 1 - Download the Yellowstone Data part of Integrating Research and Education:EarthChem:Compositional Diversity in Volcanic Suites
In any step, click the 'Show me' link to reveal extra information. A sequence of 'Show me's' indicates a series of steps. If you prefer a printout of the full set of instructions for this ...

Part 7 - Analyze and Interpret Your Results part of Integrating Research and Education:EarthChem:Compositional Diversity in Volcanic Suites
Questions to answer You should now have a number of variation diagrams plotted. Its time to try to make some sense out of all of this! The following are just a few question to get you thinking about what these ...

Part 2 - Download the Crater Lake Data part of Integrating Research and Education:EarthChem:Compositional Diversity in Volcanic Suites
In any step, click the 'Show me' link to reveal extra information. A sequence of 'Show me's' indicates a series of steps. If you prefer a printout of the full set of instructions for this ...

Selected References and Sources for Continued Study part of Integrating Research and Education:EarthChem:Compositional Diversity in Volcanic Suites
The selected references listed below will help you continue your study of the petrology of the Yellowstone and Crater Lake volcanic rocks. Crater Lake Bacon, C.R., and Druitt, T.H., 1988, Compositional evolution ...

Case Study: Diverse Origins of Two Caldera-forming Volcanoes in the Western U.S. part of Integrating Research and Education:EarthChem:Compositional Diversity in Volcanic Suites
Yellowstone and Crater Lake National Parks feature a variety of well-studied volcanic rocks and other features associated with some of the most violent volcanic eruptions to have occurred in the western United ...