![View of El Capitan and the Western Escarpment of Permian-age strata exposed in Guadalupe Mountains National Park, Texas](https://caltechsites-prod.s3.amazonaws.com/tedpresent/images/IMG_1892.a57dea68.fill-1600x650-c100.jpg)
Ted Present, Ph. D.
I am a carbonate geochemist and sedimentologist, and am currently a research scientist and lecturer at Caltech. I combine traditional tools in sedimentology/stratigraphy with diverse geochemical methods to understand how Earth's environment responds to and enables major biotic transitions. I am teaching Introduction to Geology and Geochemistry and Advanced Field Geology.
![I'm standing on a stromatolite pedestal in the Murky Formation, East Arm of Great Slave Lake, Northwest Territories, Canada](https://caltechsites-prod.s3.amazonaws.com/tedpresent/images/homepage_mugshot_2019.d72d5d1e.fill-544x500-c100.jpg)
Associate Scientific Researcher and
Lecturer in Geology
Ph.D., Caltech, 2018
M.S., Caltech, 2014
B.S., Penn State, 2011
Curriculum vitae
Google Scholar |
ResearchGate |
ORCiD
California Institute of Technology
Division of Geological & Planetary Sciences
Grotzinger Lab
B114B North Mudd Laboratory
1200 E. California Blvd., m/c 100-23
Pasadena, CA 91125
(626) 395-3947 / ted@caltech.edu
![I'm standing on a stromatolite pedestal in the Murky Formation, East Arm of Great Slave Lake, Northwest Territories, Canada](https://caltechsites-prod.s3.amazonaws.com/tedpresent/images/homepage_mugshot_2019.max-1400x800.jpg)