Jeffrey C. Wynn

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Jeff Wynn
At Smith Rocks, OR, with sleeping grandson in lap
Alma materUniversity of Arizona, University of California, Berkeley
Scientific career
FieldsEarth sciences: geophysics, geology, hydrology, volcanology; oceanography, archeology
InstitutionsUS Geological Survey

Jeffrey C. Wynn is a research geophysicist with the United States Geological Survey (USGS). He is currently based in the Cascades Volcano Observatory in Vancouver, WA, one of the five USGS volcano observatories in the United States [1].

Professional career[edit]

Wynn has served as vice president for R&D of Zonge International, and in several rotational management positions in the USGS. These include Chief Scientist for Volcano Hazards, Chief of the Office of Geochemistry & Geophysics, Chief of the Venezuelan Guayana & Amazonas Exploration Mission ("Jefe del Grupo Asesor"), where he was first author of the first complete geologic map of southern Venezuela, [1] and also published a full assessment of discovered and undiscovered mineral resources for the roadless southern half of Venezuela. [2] Wynn also served for four years as the Deputy Chief for Science and Chief of the USGS Saudi Arabian Mission before assuming responsibility for volcano research and monitoring as Chief Scientist for Volcano Hazards in the USGS.[3]

Wynn has studied and published on the historical era Wabar craters asteroid impact event in the Empty Quarter of Saudi Arabia. [4] [5] [6] He has also developed a new technology for mapping sub-seafloor minerals, buried wrecks, buried oil and gas infrastructure, and migrating hydrocarbon plumes in the open ocean using a physical property called induced polarization ("IP"). [7] [8][9][10] He has also done extensive geophysical mapping in SE Alaska.[11]

Wynn co-developed an airborne electromagnetic technology to rapidly map groundwater deep beneath arid basins in 3D.[12] Using this technology, he successfully mapped the groundwater of the San Pedro Basin in southern Arizona and northern (Sonora), Mexico in three dimensions.[13]


He has published over 300 articles, books, patents, and maps in fields as diverse as geology, oceanography, hydrology, geophysics, archeology, and astrophysics.

Wynn is a past president of the Environmental & Engineering Geophysical Society (2002–2003).[2]. He has also served as Special Editor of Geophysics and is currently an Associate Editor of Exploration Geophysics.[14]

Self Defense[edit]

Wynn holds a 7th degree black belt (Shihan or Master Teacher) in Japanese origin Jujutsu and 6th degree black belt in Taiho-Jutsu.[15]

As a community service he has taught over 3,000 women for free, along with his senior black belts, self-defense clinics in northern Virginia and southwestern Washington State [3]. He has provided self-defense training to agents of the Washington State Department of Revenue [4]. He also teaches quarterly self-defense classes at Clark College, and Washington State University - Vancouver.


Wynn has been awarded the Department of Interior Meritorious Service Award for "...his outstanding career in geophysics and...scientific leadership of the US Geological Survey."[citation needed]

In 1999 the Mars-crossing asteroid 9564 Jeffwynn was named in his honor. It was discovered by astronomers Carolyn and Eugene Shoemaker at Palomar Observatory in 1987.[16] Jeff is an Advanced Open Water diver (PADI certification) and has served as a CPR-AED Instructor (National Safety Council) [5].[citation needed]

He has been awarded three patents on marine IP, most recently in June 2013 for mapping hydrocarbons in the open ocean, with one more pending.[17] A commercial version of the towed-streamer technology was successfully tested in the Bismarck Sea in February 2005 and off the east coast of South Africa in a successful large-scale commercial sub-seafloor mineral resource mapping deployment during May - June 2007.[18] In 2018 a consortium was formed (Induced Polarization Associates) to commercialize the "Wynn" patents.


  1. ^ Wynn, Jeffrey C.; Cox, Dennis P. (1991), "A geologic and tectonic map of the Venezuelan Guayana Shield (1:1,000,000 scale) with a revised stratigraphic column for the Venezuelan Guayana Shield", USGS Bulletin 2062
  2. ^ Wynn, J.C. (1999), "Tectonics and mineral potential of the Amazonas and southwestern Bolívar States, Venezuela", Tectonics and Metallogeny, 7 (2): 95–102, doi:10.1127/gtm/7/1999/95
  3. ^ "Jeff Wynn Professional Biography".
  4. ^ Wynn, Jeffrey C.; Shoemaker, Eugene M. (November 1998), "The Day the Sands Caught Fire", Scientific American, 279 (5): 36–45, Bibcode:1998SciAm.279e..64W, doi:10.1038/scientificamerican1198-64
  5. ^ Wynn, J. C. (December 2002), "Mapping an iron meteorite impact site with a magnetometer, and implications for the probability of a catastrophic impact on Earth", Journal of Environmental & Engineering Geophysics, 7 (4): 143–150, Bibcode:2002JEEG....7..143W, doi:10.4133/jeeg7.4.143
  6. ^ Prescott, John; Robertson, Gillian; Shoemaker, C.; Shoemaker, E.C.; Wynn, J.C. (January 2004), "Luminescence dating of the Wabar meteorite craters, Saudi Arabia", Journal of Geophysical Research: Planets, 109 (E1): E01008, Bibcode:2004JGRE..109.1008P, doi:10.1029/2003je002136
  7. ^ Wynn, J.C.; Grosz, A.E. (2000), "Induced polarization - a tool for mapping titanium-bearing placers, hidden metallic objects, and urban waste on and beneath the seafloor", Journal of Environmental and Engineering Geophysics, 5 (3): 27–35, Bibcode:2000JEEG....5...27W, doi:10.4133/JEEG5.3.27
  8. ^ Wynn, Jeff; Williams, Mike; Urquhart, Scott; Furgeson, John (2011), "An open-water electrical geophysical tool for mapping sub-seafloor heavy placer minerals in 3D, and migrating hydrocarbon plumes in 4D", Proceedings Volume, IEEE-Marine Technology Society, Oceans'11, Kona-Waikaloa, HI: 6
  9. ^ Wynn, Jeff; Williamson, Mike; Fleming, John (2012). "Induced polarization for sub-seafloor, deep-ocean mapping". Sea Technology Magazine (Feature Article): 47–50.
  10. ^ Wynn, Jeffrey C.; Fleming, J.A. (2012). "Seawater Capacitance – A Promising Proxy for Mapping and Characterizing Drifting Hydrocarbon Plumes in the Deep Ocean". Ocean Science. 8 (6): 1099–1104. Bibcode:2012OcSci...8.1099W. doi:10.5194/os-8-1099-2012.
  11. ^ Wynn, Jeffrey C.; Kucks, R.P.; Grybeck, D.J. (1999). Aeromagnetic, Gravity Anomaly, and Derivative Maps of the Craig and Dixon Entrance 1-degree by 3-degree Quadrangles of Southeastern Alaska (CD-ROM) (USGS Data Series). 56. U.S. Geological Survey (USGS). ISBN 978-0607934441. ISSN 1088-1018. Retrieved 7 June 2014. {{cite book}}: |journal= ignored (help)
  12. ^ Wynn, Jeff (2006). "Mapping Ground Water in Three Dimensions -- An Analysis of Airborne Geophysical Surveys of the Upper San Pedro River Basin, Cochise County, Southeastern Arizona". U.S. Geological Survey Professional Paper. 1674: 1–43.
  13. ^ "Archived copy" (PDF). Archived from the original (PDF) on 24 July 2008. Retrieved 12 January 2022.{{cite web}}: CS1 maint: archived copy as title (link)
  14. ^ "The Journal of the Australian Society of Exploration Geophysicists - Editorial Committee". Exploration Geophysics. CSIRO. 1996–2014. Retrieved 7 June 2014.
  15. ^ Wynn, Jeff (10 January 2014). "AJA Yudansha Database" (PDF). Official Website for the American Ju-Jitsu Association. American Ju-Jitsu Association (AJA). Archived from the original (PDF) on 14 July 2014. Retrieved 7 June 2014.
  16. ^ Schmadel, Lutz D. (2007). "(9564) Jeffwynn". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 699. doi:10.1007/978-3-540-29925-7_7587. ISBN 978-3-540-00238-3.
  17. ^ U.S. Patent 6,236,211 B1 (May 2001), U.S. Patent 6,236,212 B1 (May 2001), U.S. Patent 8,463,568 B1 (June 2013)
  18. ^ "Williamson & Associates Inc. - Experience". Archived from the original on 16 January 2008. Retrieved 12 January 2022.

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