Structural geology, neotectonics, engineering geology

• B.A. Geology, 1971, Alaska Methodist University
• M. Phil. Geology, 1975, Columbia University
• Ph.D. Geology, 1976, Columbia University

My research is in structural geology, regional and active tectonics, and geodynamics. My research involves field mapping, structural and geomorphic measurements, geochemical studies, radiometric dating, GPS for geomorphology measurements, the use of quantitative remote sensing in active tectonics, and physical and numerical modeling. Current research projects include:

1) Tectonics of microplate collision in southern and central Alaska.

2) Active tectonics studies in regions of normal, strike-slip and thrust faulting (Alaska and western U.S).

3) Applications of synthetic aperture radar and multispectral / hyperspectral remote sensing in active tectonics, structural geology and geomorphology.

4) Applications of GPS in tectonic geomorphology.

5) Experimental and numerical modeling of active faulting and folding.

Bruhn,. R.L., and Haeussler, P.J., in press, Deformation driven by subduction and microplate collision: Geodynamics of Cook Inlet Basin ,Alaska. Geological Society of America Bulletin.

Bruhn, R.L., DuRoss, C.B., Harris, R.A., and Lund, W.R., 2005, Neotectonics and paleoseismology of the Wasatch Fault, Utah, in Pederson, J., and Dehler, C.M., eds., Interior Western United States: Geological Society of America Field Guide 6, 20 pp., doi: 10.1130/2005.fld006(11).

DuRoss, C.B., and Bruhn, R.L., 2005, Active tectonics of the Nephi segment, Wasatch Fault, Utah: in, W. R. Lund, editor, Western States Seismic Policy Council Proceedings Volume of the Basin and Range Province Seismic Hazards Summit II: Utah Geological Survey Miscellaneous Publications 05-2, 25 pp., CD-ROM.

Bruhn, R.L., Pavlis, T.L., Plafker, G. and Serpa, L., 2004, Deformation during terrane accretion in the Saint Elias orogen, Alaska. Geological Society of America Bulletin, V. 116, p. 771-787.

Pavlis, T.L., Picornell, C., Serpa, L., Bruhn, R.L., and Plafker, G., 2004, Tectonic processes during oblique-collision: Insights from the Saint Elias orogen, northern North American Cordillera: Tectonics. V.23, TC3001,  doi:10.102912003TC0011557. 14 pages.

Mattson, A., and R.L. Bruhn, 2001, Fault slip-rates and initiation age based on diffusion equation modeling: Wasatch fault zone and eastern Great Basin. J. Geophys. Res., V. 106, p. 13739 ­ 13750.

Groeger, A., and R.L. Bruhn, 2001, Structure and geomorphology of the Duchesne fault zone. AAPG Bull., V. 85, p. 1661 ­ 1678.

Parry, W.T., M.P. Bunds, R.L. Bruhn, C.M. Hall, and J.M. Murphy, 2001, Mineralogy, 40Ar/ 39Ar dating and apatite fission track dating of rocks along the Castle Mountain fault, Alaska. Tectonophysics, V. 337, p. 149-172

Bruhn, R.L., W.T. Parry and M.P. Bunds, 2000, Tectonics, fluid migration and fluid pressure in a deformed forearc basin, Cook Inlet, Alaska. Geol. Soc. America Bull., V. 112, p. 550-563.

Haeussler, P., R.L. Bruhn, and T.L. Pratt, 2000, Potential seismic hazards and tectonics of upper Cook Inlet basin, Alaska, based on analysis of Pliocene and younger deformation. Geol. Soc. America Bull., V. 112, p. 1414-1429.

DuRoss, C.B., and R. L. Bruhn, 2004. Active tectonics of the Nephi segment, Wasatch Fault, Utah: in, W. R. Lund, editor, Proceedings of the Basin and Range Province Seismic Hazard Summit, 2004, 25 pp.