Maya Gomes (PI): I am an assistant professor in the Earth and Planetary Sciences Department at Johns Hopkins. My primary research interest is the use of sulfur isotope and other geochemical records to reconstruct the coupled biogeochemical cycling of sulfur, carbon, and oxygen across important Earth-life transitions. In order to do this, I take both a modern and ancient perspective. I use modern lakes, microbial mats, and coastal environments as natural experimental systems to explore how sulfur isotope and other geochemical signals record environmental information in sediments. Then, I apply the results to the geological record in order to explore how the sulfur cycle interacts with other biogeochemical cycles (C, P, N, Fe, etc.) to regulate Earth surface oxygen levels during the major evolutionary transitions and climate perturbations. download CV
Dana Brenner (Lab Manager): I am a research scientist with both geology and general environmental science interests. My research focuses on understanding chemical and geochemical processes in the environment. I use a combination of laboratory experimentation, fieldwork, and computational modeling to connect micro-scale reactions to macro-scale natural processes. My research projects range from evaluating metamorphic thermal signatures with carbonate clumped isotopes to quantifying watershed scale denitrification.
Kalev Hantsoo (Graduate Student): Kalev Hantsoo studies marine and sedimentary biogeochemical cycling in Earth's past and present. He has experience with stable isotope geochemistry and ocean modeling. He is interested in the interactions between microbial and planktonic ecology, oceanic and atmospheric chemistry, and larger-scale climatic and tectonic forcings throughout Earth history. Kalev enjoys hiking, reading and traveling.
Kabir Mohammed (Graduate Student): Kabir is a first year graduate student in E&PS. His current research interests are in the evolution of metabolism and the coevolution of life and environment. He has previously worked in animal magnetoreception and microbial metabolism.
Minming Cui (Postdoctoral Fellow)
Rui Jin (Graduate Student)
Sydney Riemer (Undergraduate Student)
Cecilia Howard (Undergraduate Student)
Nicole Stevens (Undergraduate Student)
Cassidy Quiros (Undergraduate Student)
Ari Harris-Kupfer (Ingenuity Project Student)