Dr. John Ezell
Assistant Clinical Professor

John Ezell

Assistant Clinical Professor, Geology

301B Hilbun Hall
Mississippi State, MS 39762

Dr. John Ezell is an Assistant Clinical Professor in the Department of Geosciences at Mississippi State University (MSU).  He obtained his PhD in 2016 in Geology.  His research background includes hydrology, biogeochemistry, and karst.  He has conducted research at field sites in several southeastern US states, the Gulf of Mexico, and The Bahamas.  Dr. Ezell’s research projects have included herbicide research, measuring and modeling geochemical responses to hypoxia in bay waters, geochemical changes in karst springs during spring reversals, and tidal influences on the biogeochemistry of Bahamian blueholes, and karst landscape evolution.  He has taught geoscience courses for more than a decade and is currently working on improving distance learning course structures.


Ph. D, University of Florida, Department of Geological Sciences, 2010-2016
-Dissertation: Carbonate dissolution rates and volumes in changing aqueous settings
M.S., Mississippi State University, Department of Geosciences, 2008-2010
-  The sediment and water column biogeochemistry of Weeks Bay during bottom water hypoxic and normoxic events
B.S., Mississippi State University, Department of Geosciences, 2003-2008
B.S., Mississippi State University, Department of Forestry, 2003-2008


Middle and High School Science Teacher
Graduate Student – taught a variety of labs and lectures
Research Lab Coordinator

Research Interests

Bay and Spring Geochemistry, Geoscience Education, Herbicide applications/treatments, and Karst landscape Evolution

Teaching Areas

GG 1113 Survey of Earth Science I
GG 1111 Earth Science Lab
GG  1121 Survey of Earth Science II
GR  3113 Conservation of Natural Resources
GG  8133 Rocks and Minerals
GG  8613 Hydrology
GG  8400 Field Methods

Honors/Professional Activities

Excellence in teaching Award 2020
UF OGMP Supplemental Retention Scholarship 2015
Awarded GSA funding 2012
Member of lab group receiving a Science Award from the National Speleological Society Cave Diving Section 2012
Awarded NOAA NEERS Fellowship 2009
Awarded GSA funding 2009
GIS Certificate 2008
Member of:
Zi Sigma Pi
Geological Society of America
Geochemical Society Member