2023 – Present Johns Hopkins University, Blaustein Fellow
2019 – 2023
University of Delaware, Postdoctoral Researcher
2019 Austin Community College, Adjunct Professor
2012 – 2018 Yale University, Geochemistry Ph.D.
2008 – 2011 Rice University, Ecology & Evolutionary Biology, Earth Science (double major), B.S.

I grew up in the city of Austin, Texas, daughter of a northeast transplant and a Texan. My fascination with geology and paleontology began when I was in grade school and visited Inner Space Cavern in Georgetown on a school field trip. I entered graduate school as a vertebrate paleontologist as I was obsessed with the history of life. I switched to stable isotope geochemistry because I realized that I was actually more interested in the history of our climate and how it affects ecosystem dynamics.

My dissertation used clumped isotopes and phosphate-oxygen isotopes in modern gar fish as a paleoclimate proxy to recreate past hydrological cycles, using the Cretaceous-Paleogene boundary as a test case. Before starting my postdoc, I taught two semesters of Introduction to Environmental Science at Austin Community College in the spring and summer semesters. I previously was UDSA-NIFA-AFRI fellow at the University of Delaware. I am now a Blaustein Fellow in the Department of Earth & Planetary Sciences at Johns Hopkins University.


Current address:

123 Olin Hall

3400 N. Charles St

Baltimore, MD, 21218


E-mail: kgray37 [at] jhu.edu

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