Join us in Summer 2025 for a new REU site combining ceramics, engineering, materials science, and geology! We'll conduct research related to ceramics by sourcing materials from the Black Hills region and learning about the cultural history of ceramics in western South Dakota.
Applications will open in January for summer 2026.
White River Group sediments found throughout much of western South Dakota, and represent an important interval in Earth's history. The transition from the Eocene to the Oligocene was characterized by global cooling. But, the current understanding of how mid-continental locations responded to changing climate are unclear. Through this grant, we are going to develop a detailed stratigraphic framework for lacustrine carbonates from South Dakota and integrate geochemical analyses to reconstruct past climate.
What's going on in the Black Hills during the Pliocene? Until now, our only fossils from this region and this time period have been inaccessible to researchers. With these funds from the Institute of Museum and Library Services, we will spend the next 2-3 years curating this collection, which includes processing matrix, identifying taxa, and integrating students into these efforts. The site is a fissure-fill deposit, emphasizing the continued importance of caves and karst in paleontology research.
This award supported the purchase of a brand new Ion Chromatography instrument at SD Mines (ICS-6000)! In addition, funds were used to help repair an existing (but in need of a little TLC) low-temperature geochemistry instrument at Oglala Lakota College as well as train students and staff on the new instrument. We are actively characterizing water quality across the region with significantly greater ease and are training students on low-temperature geochemical analyses of waters.
We were been busy collecting surface water samples from Pine Ridge Reservation over the summer. We sampled 5 sites within two watersheds each week (from June through August), collecting almost 100 samples, driving over 2,500 miles, and logging 16 field days. The next step is to develop a better understanding of the natural variability in water chemistry and integrate geochemical modeling of changes to water chemistry in each watershed.
Jordon and Al collecting data on the Medicine Root.
The "shade tree" along Porcupine Creek.
Michael analyzing water using our Chemetrics instrument.
One of the sites along the Medicine Root (there are lots of ticks here).