Jeff Tepper

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Geology
University of Puget Sound

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Activities (2)

Application of Sr Isotopic Data to Tuolumne Intrusive Series, Sierra Nevada, CA part of Cutting Edge:Petrology:Teaching Examples
In this problem set students are given Rb/Sr and 87Sr/86Sr data for whole rock and mineral samples from three granitic intrusions in the Sierra Nevada. They use these data (in EXCEL) to calculate isochron ages and initial ages for the intrusions and then interpret their results. This problem is intended to teach some spreadsheet skills (linear regressions, graphing) as well as having them think about the use of radiogenic isotopes.

Variation Diagrams and the Evolution of Thingmuli Lavas, Iceland part of Cutting Edge:Petrology:Teaching Examples
In this problem set students are provided with an EXCEL spreadsheet containing major element analyses of lavas frm Thingmuli Volcano in Iceland. They are asked to construct variation diagrams (Harker plots) and then explain the trends they see for various elements. I use this problem set to introduce the use of EXCEL and to help students to think about the connections between mineral assemblage and rock chemistry.


Events and Communities

Teaching Petrology Participants