Homepage for Dr. Joseph D. Ortiz

Professor of Geology

Ph.D., Oceanography, Oregon State University, 1995


Areas of Interest: Methods of study:
  • Hyperspectral Visible Remote Sensing of inland waters
  • Sediment analysis using visible derivative spectroscopy, laser particle grain size analysis and elemental analysis by x-ray florescence
  • Ecology and physiology of modern and fossil planktic foraminifers; Paleo-temperature and paleo-productivity by foraminiferal faunal analysis
  • Oxygen and carbon stable isotope geochemistry in low temperature carbonates


Note: Citation information varies depending on which publications are indexed by various services and tracking methods employed.

Thompson Reuters ResearcherID

Dr. Ortiz studies a sample of hematite using

his ASD Labspec Pro FR UV/VIS/nIR analyser.  

Teaching Homepage

          View my Fall 2015 Schedule

View my Spring 2016 Schedule

Looking for a research opportunity?


I am currently seeking graduate and undergraduate students

to mentor on research projects.

How to contact me:

Room 334/336 McGilvrey Hall     Phone: 330-672-2225

Department of Geology                Fax: 330-672-7949

Kent State University                   Email: jortiz  

Kent, OH 44242                                    @kent.edu

I believe that advances in scientific fields often occur at the interfaces between well established disciplines. Because of this, I have intentionally directed my research objectives toward interdisciplinary paths.  For example, my expertise in aquatic biology allows me to study the response of marine microplankton to their environment to improve the quality of paleoclimate reconstructions. I use my expertise in core and wireline logging methods like diffuse spectral reflectance to quantify physical properties of  deep-sea sediments and to determine provenance of archeological artifacts. Advances in one area often help me to fine tune or develop new approaches for use in other aspects of my research.

My research background has provided me with a broad and powerful set of tools with which to attack problems using a multi-dimensional, interdisciplinary approach. My interest in a variety of research topics allows me to continuously refine existing skills while developing new ones. These skills and experiences enable me to conduct significant research on topics ranging from climate change to water quality.

I have received funding for my research through the National Science Foundation, the Ocean Drilling Program, Ohio SeaGrant, NOAA, the KSU Farris Family Innovation Fund for Early Achievement, and the KSU University Research and Teaching Councils.

Kent State University Department of Geology Home Page

Kent State University Homepage