Application of Sr Isotopic Data to Tuolumne Intrusive Series, Sierra Nevada, CA
Jeff Tepper
, University of Puget Sound
Author Profile
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This page first made public: Jun 23, 2008
Summary
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.
Context
Audience
This activity would be used in an undergraduate (sophomore or junior level) required course in petrology.
Skills and concepts that students must have mastered
Students should have an understanding of how to use Excel.
How the activity is situated in the course
This activity is a stand-alone exercise.
Goals
Content/concepts goals for this activity
This activity is designed to teach some spreadsheet skills (linear regressions, graphing) as well as having students think about the use of radiogenic isotopes.
Higher order thinking skills goals for this activity
Other skills goals for this activity
Working with Excel
Description of the activity/assignment
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.
Determining whether students have met the goals
Students have met the goals by successfully completing the activity.
More information about assessment tools and techniques.Download teaching materials and tips
- Activity Description/Assignment (Microsoft Word 28kB May30 08)
- Instructors Notes (Microsoft Word 25kB May30 08)
