Embedded Files
Colorado State University
Department of Geosciences
Paleoclimate And earth System Theory Group
We use the geologic past to understand why climate on Earth changes and what the consequences are for terrestrial landscapes and ecosystems
Masters and PhD Student Opportunities
We are always looking for students interested in studying past climate, the geological carbon-cycle, or interactions between weathering, erosion, and climate. If that's you, contact Jeremy. If you'd like more information about the graduate program in the Department of Geosciences at CSU, click here.
Check out the new PATCH Lab online database
The Paleo Analysis of Terrestrial Climate and Hydrology (PATCH) Laboratory is now online! This database curates more than 27,000 stable isotope measurements from Cenozoic terrestrial sediments in the northern Hemisphere. The laboratory also includes several simple models to aid in data interpretation.
See the accompanying paper in American Journal of Science.
Recent Publication Figures!
Correlation of our new terrestrial carbonate δ18O and δ13C record from the Española Basin (published in Spaur et al., 2025) with (1) progradations/retrogradations of the basin floor and alluvial fan sediments in the basin; (2) stratal accumulation rates, and; (3) the biostratigraphic intervals mapped in Williamson (2025). This figure was presented as part of the Geological Society of American field trip to the Española Basin. Follow along on the field trip in Koning et al. (2026).
Conceptual model illustrating (A) the textbook model of the carbon cycle (adapted from Kump et al. 1999) and (B) recently proposed revisions to our understanding of this "textbook" model. Not all processes are shown. (from Coogan et al. 2026)
GeoPAST Group
GeoPAST Group
Page updated
Report abuse