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Paleomagnetic analysis of bimodal magmatism associated with Tule Tank Crater, San Francisco Volcanic Field, northeastern Arizona. Christina Turpin Dr. Michael Ort Northern Arizona University, Department of Geology. Background. San Francisco Volcanic Field (SFVF). Research. - PowerPoint PPT Presentation
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Paleomagnetic analysis of bimodal magmatism
associated with Tule Tank Crater, San Francisco Volcanic
Field, northeastern Arizona
Christina TurpinDr. Michael Ort
Northern Arizona University, Department of Geology
BackgroundSan Francisco Volcanic Field (SFVF)
ResearchTule Tank Crater
Pre-Matuyama (+2.6 Ma)Matuyama (2.6 Ma – 800 ka)Brunhes (800 ka - Present)
Methods
Field Work
Sample Collection >
< Tule Tank
Lab Work1)Set in Plaster
2)Drill
3)Cut
4)Process
Data Analysis
ResultsBenmoreite
Site 5.1 Site 10
Modern magnetic field
RhyoliteResults
Site 1.3Site 8.2
Modern magnetic field
Conclusions
•Preliminary data show some consistencies with Matuyama age of eruption
•Alteration of samples’ magnetization has likely occurred
•Further analysis is needed before conclusions are interpreted
Acknowledgements
Dr. Michael Ort, Dr. Nadine Barlow and Kathleen Stigmon,
NAU/NASA Space Grant, andArizona Space Grant Consortium
for allowing me this research opportunity!!
Questions?
Transporting samples out of a very snowy
field site