Coupling Hillslope Geomorphology to Soil and Sediment Weathering
Studying how geochemical changes propagate upslope in response to differential erosion in the Feather River Basin, California. To the right: a photo of a soil horizon within the mid-grade hillslope transect FTA. The name of the transect comes from the flat tire we got getting to the site, hence calling the sub-basin "Flat Tire Alley." Other transects named during the July 2009 trip include "Poison Oak Missile Dog Creek" and "911 Basin."
Studying surface complexation states of mercury on sulfide minerals at Argonne's Advanced Photon Source. From left to right: Julia Bower (Auburn University), Kaye Savage (Wofford College), and Beth Weinman (Vanderbilt University). For more information on the project, click here.
Collaborators:
Mark Barnett, Willie Harper, and Julia Bower, Auburn University, Alabama
Kaye Savage, Director of Wofford's Environmental Studies, S. Carolina
Real time transport of colloids and arsenic
Real-time X-ray diffraction at Stanford's Synchrotron Radiation Laboratory (SSRL) provides a unique opportunity to assess the physical and chemical controls on colloidal transport. Columns filled with matrices that have different surface charges due to different points of zero charge can be monitored at various points along the column while being pumped with colloidal suspensions. The appearance and disappearance of rings in the otherwise spotted diffraction pattern provides time-resolved visual evidence for accumulation and dissipation of colloids through the matrix. This method provides a promising new approach to investigate how colloids and contaminants react with each other and the bulk properties of different matrices.
Collaborators:
Kaye Savage, Wofford College, S. Carolina Aaron Covey, Vanderbilt University, Nashville, TN Sam Webb, SSRL, Menlo Park, CA
For more information, please contact Beth Weinman.
Studying surface complexation states of mercury on sulfide minerals at Argonne's Advanced Photon Source. From left to right: Julia Bower (Auburn University), Kaye Savage (Wofford College), and Beth Weinman (Vanderbilt University). For more information on the project, click 
Real-time X-ray diffraction at Stanford's Synchrotron Radiation Laboratory (SSRL) provides a unique opportunity to assess the physical and chemical controls on colloidal transport. Columns filled with matrices that have different surface charges due to different points of zero charge can be monitored at various points along the column while being pumped with colloidal suspensions. The appearance and disappearance of rings in the otherwise spotted diffraction pattern provides time-resolved visual evidence for accumulation and dissipation of colloids through the matrix. This method provides a promising new approach to investigate how colloids and contaminants react with each other and the bulk properties of different matrices.