Amanda Calhoun
Graduate Student
My research focuses on the identification of microbial processes throughout Earth’s history using organic and inorganic isotope geochemistry.
Amanda is a Ph.D. student in the Pearson and Johnston Labs at Harvard University. She is broadly interested in the identification and characterization of life in the geologic record. To contribute to these efforts, she is using organic and inorganic geochemistry to better differentiate the isotopic signatures of biotic and abiotic systems. Amanda’s current work focuses on carbon cycling in modern terrestrial hydrothermal springs.
Her previous research has included understanding changes in the lipid membrane compositions of archaea in response to environmental variables in Yellowstone hot springs. She is supported by an NSF Graduate Research Fellowship and is a member of the Harvard Origins of Life Initiative.
Amanda holds a B.A. with High Honors in Chemistry and Earth Sciences from Dartmouth College (magna cum laude ‘23).
Contact Information
acalhoun@g.harvard.edu