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Jonathan Hagstrum

Research Geophysicist

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Short Biography


Ph.D. in Geology, 1985, Stanford University

M.Sc. in Geology, 1979, University of Michigan

B.A. in Geology, 1976, Cornell University



6/79 to present   Research Geophysicist, U.S. Geological Survey

2/82 to 6/82       Teaching assistant, Stanford University

9/76 to 8/78       Teaching/Research assistant, University of Michigan

1/76 to 5/76       Teaching assistant, Cornell University



My research interests include paleomagnetism, rock magnetism, geomagnetic secular variation, archeomagnetism, large-body impacts, mass extinctions, infrasound, and animal navigation. 



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Hagstrum, J.T., R.B. Firestone, A. West, Z Stefanka, Z. Revay, 2008, Micrometeorite impacts in Beringian mammoth tusks and a bison skull, Conference volume, 100 Years of the Tunguska Problem, Russian Academy of Sciences.

Aiello, I.W., J.T. Hagstrum, G. Principi, 2008. Peri-equitorial paleolatitudes for Jurassic radiolarian cherts of Greece: Tectonophysics, 448, 33-48.

Hagstrum, J.T., 2007. The Case for Infrasound as the Long-Range Map Cue in Avian Navigation: Proceedings of the 63rd Annual Meeting, Institute of Navigation, April 2007, Cambridge, MA, 14 pp.

Sherrod, D.R., J.T. Hagstrum, J.P. McGeehin, D.E. Champion, F.A. Trusdell, 2006. Distribution, 14C chronology, and paleomagnetism of Holocene lava flows at Haleakala volcano, Island of Maui: A revision of lava-flow hazard zones: J. Geophy. Res., 111, B05205, doi: 101029/ 2005JB003876.

Hagstrum, J.T., 2005. Antipodal hotspots and bipolar catastrophes: Were oceanic large-body impacts the cause? Earth Planet. Sci. Lett., 236, 13-27.

Abbott, D.H., J.T. Hagstrum, 2004. Strategies for finding the record of Archean impact events, in: P.G. Eriksson, W. Altermann, D.R. Nelson, W.U. Mueller, O. Catuneanu (Eds.), The Precambrian Earth: Tempos and Events, Developments in Precambrian Geology 12, Elsevier, Amsterdam, 45-61.

Aiello, I.W., J.T. Hagstrum, G. Principi, 2004. Late Miocene remagnetization within the internal sector of the Northern Apennines, Italy: Tectonophys., 383, 1-14.

Booth, D.B., K.G. Troost, and J.T. Hagstrum, 2004. Deformation of Quaternary strata and its relationship to crustal folds and faults, south-central Puget Lowland, Washington State: Geology, 32, 505-508.

Hagstrum, J.T., B.F. Atwater, B.L. Sherrod, 2004. Paleomagnetic correlation of late Holocene earthquakes among estuaries in Washington and Oregon: G3, 5, Q10001, doi: 10.1029/ 2004GC000736

Kauahikaua, J.P., K.V. Cashman, D.A. Clague, D. Champion, and J.T. Hagstrum, 2002. Emplacement of the most recent lava flows on Hualalai Volcano, Hawai`i: Bull. Volc., 64, 229-253.

Hagstrum, J.T., D. B. Booth, K.G. Troost, and R.J. Blakely, 2002. Magnetostratigraphy, paleomagnetic correlation, and deformation of Pleistocene deposits in the south-central Puget Lowland, Washington: J. Geophy. Res., 107, doi: 10.1029/ 2001JB000557.

Hagstrum, J.T., and D.E. Champion, 2002. A Holocene paleosecular variation record from 14C-dated volcanic rocks in western North America: J. Geophy. Res., 107, 2025, doi: 10.1029/ 2001JB000524.

Hagstrum, J.T., R.P. Hoblitt, C.A. Gardner, and T.E. Gray, 2002. Holocene geomagnetic paleosecular variation recorded by volcanic deposits of Mount St. Helens, Washington: Bull. Volc., 63, 545-556.

Aiello, I.W., and J.T. Hagstrum, 2001. Paleomagnetism and paleogeography of Jurassic radiolarian cherts from the northern Apennines of Italy: Geol. Soc. Am. Bull., 113, 469-481.

Hagstrum, J.T., 2000. Infrasound and the avian navigational map: J. Exp. Biol., 203, 1103-1111.

Hagstrum, J.T., and R.L. Sedlock, 1999. Remagnetization of Cretaceous forearc strata on Santa Margarita and Magdalena Islands, Baja California Sur: Implications for northward translation along the California margin: Tectonics, 17, 872-882.

Clague, D.A., J.T. Hagstrum, D.E. Champion, and M.H. Beeson, 1999. Kilauea summit overflows: Their ages and distribution in the Puna District, Hawaii: Bull. Volc., 61, 363-381.

Hagstrum, J.T., D.A. Swanson, and R.C. Evarts, 1999. Paleomagnetism of an east-west transect across the Cascade arc in southern Washington: Implications for regional tectonism: J. Geophy. Res., 104, 12,853-12,863.

Booth, D.B., K.G. Troost, and J.T. Hagstrum, 1999. Character and age of tectonically deformed Pleistocene deposits in the central Puget Lowland, Washington State: Seis. Res. Lett., 70, 234.

Hagstrum, J.T., and D.L. Jones, 1998. Paleomagnetism, paleogeographic origins, and uplift history of the Coast Range ophiolite at Mount Diablo, California: J. Geophy. Res., 103, 597-603.

Hagstrum, J.T., D.A. Swanson, and L.W. Snee, 1998. Paleomagnetism of the Miocene intrusive suite of Kidd Creek: Timing of deformation in the Cascade arc, southern Washington: J. Geophy. Res., 103, 21,047-21,056.

Hagstrum, J.T., B.L. Murchey, and R.S. Bogar, 1996. Equatorial origin for Lower Jurassic radiolarian chert in the Franciscan Complex, San Rafael Mountains, southern California: J. Geophy. Res., 101, 613-626.

Hagstrum, J.T., and B.L. Murchey, 1996. Paleomagnetism of Jurassic radiolarian chert above the Coast Range ophiolite at Stanley Mountain, California, and implications for its paleogeographic origins: Geol. Soc. Am. Bull., 108, 643-652.

Hagstrum, J.T., and D.E. Champion, 1995. Late Quaternary geomagnetic secular variation from historical and 14C-dated lava flows on Hawaii: J. Geophy. Res., 100, 24,393-24,403.

Force, E.R., W.R. Dickinson, and J.T. Hagstrum, 1995. Tilting history of the San Manuel-Kalamazoo porphyry system, southeastern Arizona: Econ. Geol., 90, 67-80.

Hagstrum, J.T., 1994. Jurassic apparent polar wander for North America: The present dilemma: EOS, Am. Geophys. Union, 74, 65-69.

Hagstrum, J.T., P.W. Lipman, and D.A. Sawyer, 1994. Paleomagnetism, stratigraphy, and petrology of the Upper Cretaceous Roskruge Volcanics at Bell Mountain, southeast Arizona: J. Geophy. Res., 99, 15,097-15,102.

Hagstrum, J.T., 1994. Remagnetization of Jurassic volcanic rocks in the Santa Rita and Patagonia Mountains, Arizona: Implications for North American APW: J. Geophy. Res., 99, 15,103-15,113.

Hagstrum, J.T., P.W. Lipman, and R.B. Moore, 1994. Late Cretaceous paleomagnetism of the Tombstone district and vicinity: Evidence for a rotational-domain boundary in southeastern Arizona: Tectonics, 13, 1295-1308.

Hagstrum, J.T., and D.E. Champion, 1994. Paleomagnetic correlation of Late Quaternary lava flows in the lower east rift zone of Kilauea Volcano, Hawaii: J. Geophy. Res., 99, 21,679-21,690.

Anders, M.H., M. Spiegelman, D.W. Rodgers, and J.T. Hagstrum, 1993. The growth of fault-bounded tilt blocks: Tectonics, 12, 1451-1459.

Hagstrum, J.T., M.L. Martinez, and D. York, 1993. Paleomagnetic and 40Ar/39Ar evidence for remagnetization of Mesozoic oceanic rocks on the Vizcaino Peninsula, Baja California Sur, Mexico: Geophys. Res. Lett., 20, 1831-1834.

Hagstrum, J.T., and B.L. Murchey, 1993. Deposition of Franciscan Complex chert along the paleoequator and accretion to the American margin at tropical paleolatitudes: Geol. Soc. Am. Bull., 105, 766-778.

Lipman, P.W., and J.T. Hagstrum, 1992. Jurassic ash-flow sheets, calderas, and related intrusions of the Cordilleran volcanic arc in southeastern Arizona: Implications for regional tectonics and ore deposits: Geol. Soc. Am. Bull., 104, 32-39.

Hagstrum, J.T., and R.L. Sedlock, 1992. Paleomagnetism of Mesozoic red chert from Cedros Island and the San Benito Islands, Baja California, Mexico, revisited: Geophys. Res. Lett., 19, 329-332.

Hagstrum, J.T., 1992. Remagnetization of the Coast Range ophiolite at Stanley Mountain, California, during accretion near 10°N paleolatitude: Geology, 20, 503-506.

Hagstrum, J.T., and P.W. Lipman, 1991. Paleomagnetism of three Upper Jurassic ash-flow sheets in southeastern Arizona: Implications for regional deformation: Geophys. Res. Lett., 18, 1413-1416.

Hagstrum, J.T., and W.P. Harbert, 1991. Paleomagnetism and microplate tectonics, in Shea, M. A., ed., U. S. National Report to International Union of Geodesy and Geophysics 1987-1990, Rev. Geophys., Supp., 395-404.

Hagstrum, J.T., and P.W. Lipman, 1990. Paleomagnetism of the Tucson Mountains: Implications for vertical axis rotations in south central Arizona: J. Geophy. Res., 96, 16,069-16,081.

Hagstrum, J.T., 1990.  Remagnetization and northward coastwise transport of Franciscan Complex rocks, northern California: A reinterpretation of the paleomagnetic data: Tectonics, 9, 1221-1233.

Hagstrum, J.T., and R.L. Sedlock, 1990. Remagnetization and northward translation of Mesozoic red chert from Cedros Island and the San Benito Islands, Baja California, Mexico: Geol. Soc. Am. Bull., 102, 983-991.

Hagstrum, J.T., and D.A. Sawyer, 1989. Late Cretaceous paleomagnetism and clockwise rotation of the Silver Bell Mountains, south-central Arizona: J. Geophy. Res., 94, 17,847-17,860.

Hagstrum, J.T., and P.B. Gans, 1989. Paleomagnetism of the Oligocene Kalamazoo Tuff: Implications for middle Tertiary extension in east-central Nevada: J. Geophy. Res., 94, 1827-1842.

Hagstrum, J.T., M.G. Sawlan, B.P. Hausback, J.G. Smith, and C.S. Grommé, 1987. Miocene paleomagnetism and tectonic setting of the Baja California Peninsula, Mexico: J. Geophy. Res., 92, 2627-2639.

Hagstrum, J.T., D.P. Cox, and R.J. Miller, 1987. Structural reinterpretation of the Ajo mining district, Pima County, Arizona, based on paleomagnetic and geochronologic studies: Econ. Geol., 82, 1348-1361.

Hagstrum, J.T., and C.M. Johnson, 1986. A paleomagnetic and stable isotope study of the pluton at Rio Hondo near Questa, New Mexico: Implications for CRM related to hydrothermal alteration: Earth Planet. Sci. Lett., 78, 296-314.

Hagstrum, J.T., and P.W. Lipman, 1986. Paleomagnetism of the structurally-deformed Latir volcanic field, northern New Mexico: Relations to formation of the Questa caldera and development of the Rio Grande rift: J. Geophy. Res., 91, 7383-7402.

Hagstrum, J.T., M. McWilliams, D.G. Howell, and S. Grommé, 1985. Mesozoic paleomag-netism and northward translation of the Baja California Peninsula: Geol. Soc. Am. Bull., 96, 1077-1090.

Hagstrum, J.T., R. Van der Voo, B. Auvray, and N. Bonhommet, 1980. Eocambrian-Cambrian paleomagnetism of the Armorican Massif, France: Geophy. J. Royal Astr. Soc., 61, 489-517. 

Contact Information

Jonathan Hagstrum
345 Middlefield Road
Menlo Park, CA 94025
650-329-4664 - Fax
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