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Links Below Access Subdivisions
Research
Facilities
People
Courses
Vita
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This web site shows some of the research/academic activities
and interests of Terry Tullis and his students and research associates.
At each level, hyperlinks to pages at lower levels are shown in the list
of links in the left column. Hyperlinks to other pages at the same level
are shown in buttons at the top of each page. There are also cross-reference
highlighted hyperlinks throughout the text. Additional materials can be
found in the description of research in the areas of Structural
Geology and Geophysics.
Most photos below are hyperlinks to related topics.
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Terry in the Black Hills of South Dakota, where he goes to relax
now and then. |
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Frame from a video of my
Parkfield Earthquake
Model |
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Former Graduate Student Bill Power posing by one
of the fault surfaces he measured the roughness of, Dixie Valley,
Nevada. |
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Terry posing by the lower end of his rotary
shear rock deformation apparatus |
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Dramatic reduction in friction from typical
values of ~0.7 after large slip at high, but sub-seismic slip
velocities |
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Two samples of feldspar gouge, 1 mm thick. The
top one was sheared to 18 mm, the bottom one to 60 mm. The
distributed shear strain accounts for about 9 mm of the slip. The
remaining slip occurs on localized boundary-parallel surfaces near
the bottom boundary. |
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Terry looking down the business
end of his high pressure vessel |
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