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D. John Chadwick

Assistant Professor

Address: SSMB 244
Phone: 843.953.5950


James Madison University

B.S. Geology, 1987

Northern Arizona University

M.S. Geology, 1993

University of Florida

Ph.D. Geological Sciences, 2002

Research Interests

High-temperature geochemistry

Remote Sensing

Planetary Science



I rely primarily on two sets of tools in my research: high-temperature geochemistry for understanding regional magmatic and tectonic processes, and satellite and airborne remote sensing and other geospatial tools (GIS and precision GPS) for geologic and topographic mapping and environmental studies.  My research is focused on understanding magmatic and tectonic processes associated with oceanic and continental hotspots, island arcs, and mid-ocean ridges.  I am particularly interested in the cause-and-effect relationships that commonly exist between tectonic and magmatic processes and the insight that can be gained by studying these systems in an integrated way.  I have also used remote sensing and GPS to monitor large landslides in geological hazards studies, and also in environmental applications to study the habitat of endangered red wolves in North Carolina and mangrove biomass and species distribution in south Florida.

Courses Taught

GEOL 105 Earth History

GEOL 240 Special Topic: Geology of the National Parks

GEOL 240 Special Topic: Volcanic Geochmistry and Tectonics

GEOL 240 Special Topic: Volcanoes in the Footsteps of Darwin (Course Abroad in Galapagos)

GEOL 256 Mineralogy and Petrology

GEOL 360 Field Studies

GEOL 442 and EVSS 642 Geological Applications of Remote Sensing

HONS 155 Honors Geology 1


Karlin, M., Václavík, T., Chadwick, J., and Meentemeyer, R., Habitat use by adult red wolves, Canis rufus, in an agricultural landscape, Mammal Study 41: 87–95, June, 2016.

Chadwick, J., P. McGovern, M. Simpson, and A. Reeves, Late Amazonian subsidence and magmatism of Olympus Mons, Mars, Journal of Geophysical Research, Planets, 120, doi:10.1002/2015JE004875, 2015.

Chadwick, J., Keller, R., Kamenov, G., Yogodzinski, G., Lupton, J., “The Cobb hot spot: HIMU-DMM mixing and melting controlled by a progressively thinning lithospheric lid,” Geochemistry, Geophysics, Geosystems, Vol 15, Issue 8, DOI: 10.1002/2014GC005334, August, 2014.

Karlin, M., and Chadwick, J., “Red wolf natal dispersal characteristics: Comparing periods of population increase and stability”, Journal of Zoology 286(4), March 2012. 
Karlin, M., and Chadwick, J., “Measures of Space use and Association of Two Unrelated Male Red Wolves in a Shared Area,” Mammal Study 36(3):147-153, August 2011.

Chadwick, D.J., “Integrated LiDAR and IKONOS multispectral imagery for mapping mangrove distribution and physical properties”, International Journal of Remote Sensing, DOI 10.1080/01431161.2010.512944, 1-17, 2011.

Chadwick, D.J., Fazio, B., and Karlin, M., “Effectiveness of GPS-based Telemetry and Remote Sensing Imagery to Determine Temporal Changes in Habitat Use and Home-range Sizes of Red Wolves”, Southeastern Naturalist 9(2):303–316, 2010.

Chadwick, J., Perfit, M., McInnes, B., Kamenov, G., Plank, T., Jonasson, I., and Chadwick, C., “Arc lavas on both sides of a trench: slab window effects at the Solomon Islands triple junction, SW Pacific,” doi:10.1016/j.epsl.2009.01.001, Earth and Planetary Science Letters, 2009.

Chadwick, D.J., D. Rogers, S. Payne, and T. Van Hove, “Contemporary tectonic motion of the eastern Snake River Plain, Idaho: A global positioning system study, 1995-2004,” Tectonics, vol. 26, TC6005, doi: 10.1029/2005TC001914, 2007.

Glenn, N., Streuker, D., Chadwick, D.J., Thackray, G., and Dorsch, S., “Lidar-derived topographic analyses for studying landslide morphology, material type, and activity,” Geomorphology, 73, 131-148, 2006.

Chadwick, D.J., S. Dorsch, N. Glenn, G. Thackray, K. Shilling, “Application of multi-temporal high-resolution imagery and GPS in a study of the motion of a canyon rim landslide,” Journal of the International Society of Photogrammetry and Remote Sensing (ISPRS), 59, p. 212-221, 2005.

Chadwick, D.J., N. Glenn, G. Thackray, S. Dorsch, “Landslide surveillance: new tools for an old problem,” Eos Transactions of the American Geophysical Union, 86, No. 11, 2005.

Chadwick, D.J.,  M. Perfit, I. Ridley, I. Jonasson, G. Kamenov, W. Chadwick, R. Embley, P. le Roux, M. Smith, “Magmatic effects of the Cobb hot spot on the Juan de Fuca Ridge”, Journal of Geophysical Research, 110, B03101, doi:10.1029/2003LB002767, 2005.