Department of Geological and Atmospheric Sciences (GE-AT)

Stable Isotope Paleo Environments Research Group (SIPERG)

Prospective Students



"Good students never go out of style"

If you are a motivated and a curious student looking to join the SIPERG, please contact me (515-294-5142 or I am actively recruiting talented students who share similar research interests with me.

Research Interests of Dr. Alan Wanamaker

My research is largely dedicated to documenting and understanding past climates, especially in the North Atlantic region. Additionally, I am interested in developing new geochemical tools and proxy records for paleoclimatic applications. For my research, I primarily utilize light stable isotopes in both biogenic and inorganic carbonates. I direct the Stable Isotope Laboratory in the Department of Geological and Atmospheric Sciences.

Current Research:

• Climate variability and mechanisms of climate change with a focus on mid-to-high latitudes.

• Dynamics of atmospheric and oceanic shifts in the North Atlantic region during recent climate anomalies, especially during the Medieval Climate Anomaly and the Little Ice Age transition.

• Carbon dynamics, cycling, and anthropogenic impacts (e.g., ocean acidification, 13C Suess effect) on Earth systems. Radiocarbon as a tracer of ocean circulation.

• Paleohydroclimate using oxygen and carbon isotopes derived from speleothems.

• Isotope geochemistry and clumped isotope geochemistry in biogenic carbonates.

• Biomineralization in carbonates, and the development of new geochemical techniques and proxies using mollusks, corals, and corallines.

• Sclerochronology and isotope geochemistry of long-lived biogenic carbonates, and the development of advanced sclerochronology techniques.

• Development of paleothermometry techniques using the isotope and elemental geochemistry from biocarbonates.