Eric Schuemann

 Lapham Hall

My research focuses on the effects of lithology on strain and deformation partitioning within the transpressional shear zone which cuts through the Blue Draw Gabbro and the Boxelder Creek Quartzite, in South Dakota’s Black Hills. The results of this work have implications for unraveling the Paleoproterozoic tectonic evolution of the Black Hills region, which is an important window into the final suturing of the Wyoming and Superior Provinces in the late Archean. More broadly, this research aims to understand rigid igneous body behavior within zones of high and low shear, how strain is being concentrated or diffused across different lithologies, and how competency differences affect rheology and vorticity within shear regimes on the macroscale.