Determining Mantle Temperature and Composition from Discontinuities
This activity was selected for the On the Cutting Edge Exemplary Teaching Collection
Resources in this top level collection a) must have scored Exemplary or Very Good in all five review categories, and must also rate as “Exemplary” in at least three of the five categories. The five categories included in the peer review process are
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This activity has benefited from input from faculty educators beyond the author through a review and suggestion process. This review took place as a part of a faculty professional development workshop where groups of faculty reviewed each others' activities and offered feedback and ideas for improvements. To learn more about the process On the Cutting Edge uses for activity review, see http://serc.carleton.edu/NAGTWorkshops/review.html.
This page first made public: May 17, 2010
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Download teaching materials and tips
- Activity Description/Assignment
#1: "Hotspot" vs Ridge Temperature Activity (Microsoft Word 638kB Feb25 10)
#2: Student Handout for Temperature vs Composition Interpretations (PowerPoint 346kB Feb25 10)
#3: Phase Diagrams (Acrobat (PDF) 274kB Feb25 10)
- Instructors Notes:
For #1 above: Transition Zone Discontinuity Slides (PowerPoint 2.7MB Mar25 10). These slides include an overview of transition zone temperature and methods used to study mantle discontinuities.
For #2 and 3 above: Instructor Notes for Phase Diagram Interpretation (Microsoft Word 39kB Feb25 10). This document outlines the phase diagrams used for the temperature vs composition interpretations and suggests issues to address with students.
- Solution Set:
For #1 above: Excel Key for Temperature Activity (Excel 33kB Feb25 10)
Courtier, A. M., B. Bagley, and J. Revenaugh (2007), Whole mantle discontinuity structure beneath Hawaii, Geophysical Research Letters, 34, L17304, doi:10.1029/2007GL031006.
Katsura, T., et al. (2003), Post-spinel transition in Mg2SiO4 determined by high P-T in situ x-ray diffractometry, Physics of the Earth and Planetary Interiors, 136, 11–24.
Katsura, T., et al. (2004), Olivine-wadsleyite transition in the system (Mg, Fe)2SiO4, Journal of Geophysical Research, 109, B02209, doi:10.1029/2003JB002438.
Lawrence, J.F., Shearer, P.M., 2006. A global study of transition zone thickness using receiver functions. Journal of Geophysical Research 111. doi:10.1029/2005JB003973.
Lawrence, J.F., Shearer, P.M., 2008. Imaging mantle transition zone thickness with SdS-SS finite-frequency sensitivity kernels. Geophysical Journal International, 174:1, 143-158.
Li, X., Kind, R., Priestley, K., Sobolev, S.V., Tilmann, F., Yuan, X., Weber, M., 2000. Mapping the Hawaiian plume conduit with converted seismic waves. Nature 405, 938–941.
Shen, Y., C. J. Wolfe, and S. C. Solomon (2003), Seismological evidence for a mid-mantle discontinuity beneath Hawaii and Iceland, Earth and Planetary Science Letters, 214, 143– 151.