Mailing address: PO Box 208109, New Haven CT 06520-8109
Street address: 210 Whitney Ave., New Haven CT 06511
My thesis work has focused on understanding changes in the global hydrological cycle during rapid greenhouse-gas induced warming using two hyperthermals in the early Eocene: the Paleocene-Eocene Thermal Maximum (PETM) and the Eocene Thermal Maximum 2 (ETM2). I have developed compound-specific carbon and hydrogen isotopic (D/H) records of leaf-wax biomarkers (primarily n-alkanes) from IODP/ODP ocean cores and marginal marine sedimentary sections across these warming events. Site locations include Venezuela, Cicogna (Italy), Alamadeilla (Spain), Tawanui (New Zealand), and the Canadian High Arctic. Data is compared against isotope-coupled modeling results generated in collaboration with Dr. Matt Huber (Purdue).
The main questions addressed in my dissertation include:
- Do biomarker records from successive hyperthermals in the early Eocene indicate consistent hydrological changes in the Arctic?
- Can isotope-coupled Global Climate Models reproduce biomarker proxy D/H compositions during the early Eocene?
- How do local differences in runoff and n-alkane transport mechanisms affect D/H records?
- How do meridional D/H isotopic gradients vary with mean global temperature during the early Eocene?