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Contact information
- Dept. Geology and Geophysics
- University of Hawai‘i
- 1680 East-West Rd
- Honolulu, HI 96822
- shipping: POST 606A
- office: POST 617B
- ph: (808) 389-87536
- fax: (808) 956-5512
- jhammer@hawaii.edu
- G&G Faculty page
Education
- BA: Dartmouth College 1993
- PhD: University of Oregon 1998
- Postdoctoral Fellow: Brown University 1999-2002
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 Research Interests
I use field, analytical, and experimental methods to study magmas as they accumulate in crustal storage regions, mix and equilibrate with other magmas, and ascend to the surface during volcanic eruptions. I am interested in constraining and utilizing the differences in the rates of magmatic processes in order to better understand subsurface plumbing systems and transport processes.
 I built and maintain the UH Experimental Petrology Laboratory, capable of studying geologic materials at high temperatures (600–1700°C) and a range of crustal pressures (1 bar to 4 kbar).
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