usgs

 

   

 

 

 

Jonathan M.G. Glen

Research Geophysicist
Geophysical Unit

Menlo Park, CA (GUMP)

U.S. Geological Survey
345 Middlefield Road, MS989
Menlo Park, CA 94025
phone: (650) 329-5282
fax: (650) 329-5133
email: jglen@usgs.gov

 

   

 

I am a geophysicist with the U.S. Geological Survey working with the Western Region Earth Surface Processes Team in Menlo Park, California. My recent research has mostly focused on applying potential-field, and rock- and paleo-magnetic methods to geologic and tectonic problems in the western U.S.

 

RESEARCH INTERESTS

My work involves studies in potential field geophysics, rock- and paleo-magnetism, and geomagnetism, applied to:
·  Basin and Range tectonics, volcanism, and metallogeny
·  Cascade Range and back-arc tectonics and metallogeny
·  Geothermal resourses in the western U.S.
·  Alaska tectonics and metallogeny
·  Paleomagnetic field behavior: magnetic polarity reversals, secular variation, excursions, paleointensity
·  Magneostratigraphy and calibration of the magnetic polarity time scale
·  Magma flow (using anisotropy of magnetic susceptibility)
·  Hotspots, continental rifting, and flood volcanism
·  Mass Extinctions
·  Electromagnetic monitoring of earthquakes
·  Bolide impacts and Earth history

 

PUBLICATIONS

Selected publications

Glen, J.M.G., Egger, A.E., and Ponce, D.A., 2008, Structural control of hot springs in a developing basin-and-range setting, Surprise Valley, California, northwestern Great Basin, transactions of the Geothermal Resources Council, 2008 Annual Meeting, Reno, NV, 8 p.

Watt, J.T., Glen, J.M.G., John, D.A., Ponce, D.A., 2007, Three-dimensional geologic model of the northern Nevada rift and the Beowawe geothermal system, north-central Nevada, Geosphere, 3, 6, 667-682.

Glen, J.M.G., Schmidt, J., and Morin, R.,2007, Gravity and magnetic character of southcentral Alaska: constraints on geologic and tectonic interpretations, and implications for mineral exploration, Geological Society of America, Special Paper 431, Ch 23, p.593-622.

Glen, J.M.G., Schmidt, J., Pellerin , L., McPhee, D.K., and O’Niell, M., 2007, Crustal structure of Wrangellia and adjacent terranes inferred from geophysical studies along a transect through the northern Talkeetna Mountains, Geological Society of America, Special Paper 431, Ch 23, p.21-41.

Lerch D.W., Klemperer, S.L., Glen, J.M.G., Ponce, D.A., Miller, E.L., Colgan, J.P., 2007, Crustal structure of the northwestern Basin and Range Province and its transition to unextended volcanic plateaus, Geochem. Geophys. Geosyst., 8, Q02011, doi:10.1029/2006GC001429.

Glen, J.M.G., 2004, A kinematic model for the southern Alaska orocline based on regional fault patterns, Geological Society of America, Special Publication 383, Ch. 11, 161-172.

Glen, J.M.G., and Ponce, D.A., 2002, Large-scale fractures related to inception of the Yellowstone hotspot, Geology, 30, 7, 647-650.

Ponce, D.A., and Glen, J.M.G., 2002, Relationship of Epithermal Gold Deposits to Large-scale Fractures in Northern Nevada, Economic Geology, 97, 3-9.

  More….

 


LINKS
USGS (Menlo Park) Rock- and Paleo-magnetics lab
USGS Mineral Resources Program
USGS Heat Flow Studies
Debate on mantle plumes
Great Basin Geoscience Data Base
Geomagnetism
USGS publication warehouse
World Magnetic Anomaly Map
How volcanoes work

 

 

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