This assignment includes three reading assignments for students that (1) introduce the basics of stable isotope geochemistry, (2) explain carbon and oxygen isotopic shifts that result from volatilization and/or infiltration during metamorphism, and (3) apply real data to the Alta Aureole, Utah. Problems are assigned with each part. These start out very specific and become successively more open-ended. Classroom activities and suggestions for class discussion are included. This unit is intended to take two class periods, but Part 3 includes material on metamorphic reactions in carbonate rocks and T-X(CO2) diagrams. If these are new to the students, then they may require more time to understand. Problems in Parts 2 and 3 recommend using a spreadsheet for their solution and Excel files are provided as a starting point. This assignment integrates several lines of evidence, including stable isotope data, to a particular geological problem. Students manipulate a data set and interpret its meaning. This unit encourages students to think deeply about metamorphic processes on local and regional scales. For example, what happens to volatiles formed by mineral reactions and how might fluid flow occur over large distances during metamorphism.


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    Higher Education,NSDL_SetSpec_380601,Geology,Undergraduate (Lower Division),Undergraduate (Upper Division),Stable Isotopes,Geoscience,Geochemistry,Vocational/Professional Development Education,oai:nsdl.org:2200/20100502200655979T,Chemistry,Metamorphic Processes,NSDL



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