Research Project
Grant-in-Aid for Scientific Research (B)
The Raman spectra of carbonaceous material in natural and experimental pseudotachylytes and fault gouges were analyzed to detect increased heating on faults. The results indicate that the Raman spectra can successfully detect increased carbonization associated with frictional heating. This increased carbonization can occur in ~4-16 s and is preserved even after alteration of fault materials. The comparison between experiment and Raman data demonstrated that there is a correlation between the average shear stress and the Raman spectra. Using the correlation, the average coseismic shear stress was estimated. Raman analysis of carbonaceous material-bearing faults will be useful for estimation of coseismic fault strength.
All 2017 2016 2015 2014 Other
All Journal Article (12 results) (of which Int'l Joint Research: 4 results, Peer Reviewed: 12 results, Open Access: 7 results, Acknowledgement Compliant: 2 results) Presentation (20 results) (of which Int'l Joint Research: 2 results, Invited: 5 results) Book (1 results) Remarks (1 results)
Geophysical Research Letters
Volume: 44 Issue: 4 Pages: 1749-1757
10.1002/2016gl072457
120007134982
Geological Society, London
Volume: 536 Pages: 125-137
10.1144/goj.4
Geophys. Res. Lett.
Volume: 43 Issue: 6 Pages: 2488-2493
10.1002/2016gl067671
120007135455
Earth Planet. Sci. Lets
Volume: 424 Pages: 191-200
10.1016/j.epsl.2015.05.037
Earth and Planetary Science Letters
Volume: 421 Pages: 47-57
10.1016/j.epsl.2015.04.001
Tectonics
Volume: 34 Issue: 1 Pages: 1-17
10.1002/2014tc003695
Journal of Geodynamics
Volume: 89 Pages: 29-38
10.1016/j.jog.2015.06.002
Geology
Volume: 43 Issue: 2 Pages: 155-158
10.1130/g35948.1
Geochemistry, Geophys. Geosystems
Volume: 16 Issue: 8 Pages: 2725-2742
10.1002/2015gc005837
120005693905
Nature Geoscience
Volume: 8 Issue: 11 Pages: 870-874
10.1038/ngeo2547
120007130023
Progress in Earth and Planetary Science
Volume: 1 Issue: 1 Pages: 1-30
10.1186/2197-4284-1-7
Earth, Planets and Space
Volume: 66 Issue: 1 Pages: 1-8
10.1186/1880-5981-66-72
http://www.geol.tsukuba.ac.jp/~kohtaro/Kohtaro_Ujiie/Home.html