The PhD in Geobiology at Caltech explores the intersection of geology and biology, offering unique research opportunities to study the planet’s early environments, microbial ecosystems, and climate change impacts. The topics below represent critical areas of study in this dynamic field.
Biogeochemical Cycling in Marine Environments
The Role of Microorganisms in Bioremediation of Contaminated Sites
Fossil Fuel Decomposition and its Impacts on Carbon Sequestration
Investigating the Evolution of Earth’s Early Atmosphere through Geobiological Evidence
The Role of Extremophiles in Biogeochemical Processes
Sediment Geobiology and Climate Change
Microbial Ecology of Soil and Water Systems
Geobiology of Hydrothermal Vent Ecosystems
The Interactions Between Geological and Biological Systems in Prebiotic Chemistry
Microbial Contributions to Biogeochemical Cycles in the Arctic
Hydrocarbon Biodegradation in Natural and Industrial Environments
Geobiological Implications for Human Health and Disease
Paleogeobiology and the Study of Earth’s Ancient Ecosystems
Understanding Earth’s Environmental Evolution Using Geobiological Models
Isotopic Tracers in Geobiology for Environmental Monitoring
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