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GMEG - Geophysics Unit of Menlo Park, CA- (GUMP)


Geophysics Unit of Menlo Park, CA (GUMP)

U.S. Geological Survey - Western Region - Geology and Geophysics



John W. Hillhouse

Geophysical Unit of Menlo Park, CA (GUMP)

U.S. Geological Survey
345 Middlefield Road, MS975
Menlo Park, CA 94025
phone: (650) 329-4932
fax: (650) 329-4936

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Jack Hillhouse has conducted geophysical research, specializing in paleomagnetism, for the U. S. Geological Survey for more than 30 years.  His doctoral dissertation refined the magnetostratigraphy of the Koobi Fora, Kenya, early-man archaeological sites and a decade later he teamed up with Frank Brown and Thure Cerling to extend the polarity zonation of the Koobi Fora Formation.  He has worked extensively in Alaska to investigate plate-tectonic movements as revealed by paleomagnetic poles.  With coworkers from the USGS he developed the concept of “Wrangellia,” a microplate or far-travelled terrane now attached to southern Alaska and British Columbia.  His early studies of the paleomagnetism of Triassic rocks in Alaska and Oregon provided credible evidence for the displaced-terrane concept.  He has authored more than 70 papers in refereed scientific journals in the areas of paleomagnetism, sedimentary rock magnetism, plate tectonics, magnetostratigraphy, and geomagnetic polarity transitions.  As an active member of the Geomagnetism and Paleomagnetism section of the American Geophysical Union, Hillhouse has served as Secretary, meeting program chairman, and associate editor of Journal of Geophysical Research and the Geophysical Monograph Series.  He has held a number of rotational management positions during 10 years of his tenure at USGS since 1988: Chief of the Branch of Western Regional Geology, Associate Team Chief Scientist (TCS) and Acting TCS of the Geology and Geophysics Science Center.  Management duties involved leadership and scientific-program planning for a staff of about 100 scientists and support staff.



Education: 1971, A. B. Geology and Geophysics, University of California, Berkeley; 1976, Ph. D. Geophysics, Stanford University



Hillhouse, J. W., 1976, Paleomagnetism of the Plio-Pleistocene sediments of Lake Tecopa, California and East Rudolf, Kenya: Magnetic stratigraphy and polarity transitions: U.S. Geol. Surv. Open-file Report, 76-173, 225 p. (Ph. D. dissertation)

Hillhouse, J. and Cox, A., 1976, Brunhes-Matuyama polarity transition: Earth Planet. Sci. Lett., v. 29, p. 51-64.

Hillhouse, J. W., Ndombi, J. W. M., Cox, A., and Brock, A., 1977, Additional results on paleomagnetic stratigraphy of the Koobi Fora Formation, east of Lake Turkana (Rudolf), Kenya: Nature, v. 265, p. 411-415.

Hillhouse, J. W., 1977, Paleomagnetism of the Triassic Nikolai Greenstone, McCarthy quadrangle, Alaska: Canadian Jour. Earth Sci., v. 14, p. 2578-2592.

Hillhouse, J. W., Gromme, C. S., and Vallier, T. L., 1982, Paleomagnetism and Mesozoic tectonics of the Seven Devils Volcanic Arc in northeastern Oregon: Jour. Geophys. Res., v. 87, p. 3777-3794.

Hillhouse, J. W., and Gromme, C. S., 1984, Northward displacement and accretion of Wrangellia: New paleomagnetic evidence from Alaska: Jour. Geophys. Res., v. 89, p. 4461-4477.

Hillhouse, J. W., Cerling, T. E., and Brown, F. H., 1986, Magnetostratigraphy of the Koobi Fora Formation, Lake Turkana, Kenya: Jour. Geophys. Res., v. 91, p. 11,581-11,595.

Hillhouse, J. W., 1987, Accretion of southern Alaska: Tectonophysics, v. 139, p. 107-122.

Hillhouse, J. W., 1987, Late Tertiary and Quaternary Geology of the Tecopa basin, southeastern California: U.S. Geol. Surv. Misc. Invest. Series Map, I-1728 (with 16 p. accompanying text, scale 1:48,000).

Hillhouse, J. W., and McWilliams, M. O., 1987, Application of paleomagnetism to accretionary tectonics and structural geology: Reviews of Geophys., v. 25, no. 5, p. 951-959.

Hillhouse, J. W., 1989, Paleomagnetic methods, in Pakiser, L. C. and Mooney, W. D., eds., Geophysical Framework of the Continental United States, Geol. Soc. Amer. Memoir 172, p. 61-70.

Wells, R. E., and Hillhouse, J. W., 1989, Paleomagnetism and tectonic rotation of the Lower Miocene Peach Springs Tuff - Colorado, Plateau, Arizona, to Barstow, California: Geol. Soc. Amer. Bull., v. 101, p. 846-863.

Hillhouse, J. W., and Wells, R. E., 1991, Magnetic fabric, flow directions, and source area of the Lower Miocene Peach Springs Tuff in Arizona, California, and Nevada: Jour. Geophys. Res., v. 96, p. 12443-12460.

McDougall, I., Brown, F.H., Cerling, T.E., and Hillhouse, J.W., 1992, A reappraisal of the geomagnetic polarity time scale to 4 Ma using data from the Turkana basin, East Africa: Geophys. Res. Letters, v. 19, p. 2349-2352.

Hillhouse, J. W., and Coe, R. S., 1994, Paleomagnetic data from Alaska: in Plafker, G., and Berg, H.C., eds., The Geology of Alaska:  Boulder, Colorado, Geological Society of American, The Geology of North America, v. 6-1, p. 797-812. 

Cox, B. F., and Hillhouse, J. W., 2003, Pliocene and Pleistocene evolution of the Mojave River, and associated tectonic development of the Transverse Ranges and Mojave Desert, based on borehole stratigraphy studies and mapping of landforms and sediments near Victorville, California: Geol. Soc. America, Special Paper 368, p. 1-42.

Hillhouse, J. W., and Jachens, R. C., 2005, Highly magnetic upper Miocene sandstones of the San Francisco Bay Area, California: Geochem. Geophys. Geosyst., v. 6, Q05005, doi: 10.1029/2004GC000876, 2005.

Pease, V. L., Hillhouse, J. W., and Wells, R. E., 2005, Paleomagnetic quantification of upper-plate deformation during Miocene detachment faulting in the Mohave Mountains, Arizona, Geochem. Geophys. Geosyst., Vol. 6, Q09004, doi: 10.1029/2005GC000972,07 September 2005.

King, N. M., Hillhouse, J. W., Gromme, S., Hausback, B. P., and Pluhar, C. J., 2007, Stratigraphy, paleomagnetism, and anisotropy of magnetic susceptibility of the Miocene Stanislaus Group, central Sierra Nevada and Sweetwater Mountains, California and Nevada: Geosphere, v. 3., p. 646-666.

Hopson, R. F., Hillhouse, J. W., and Howard, K. A., 2008, Dike orientations in the Late Jurassic Independence Dike Swarm and implications for vertical-axis tectonic rotations in eastern California: Geol. Soc. Am. Special Paper 438, p. 481-498.

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