End Member Mixing Anaysis Applied to the Karstic Madison Aquifer using

"End Member Mixing Anaysis Applied to the Karstic Madison Aquifer using Water Chemistry in the Southern Black Hills, South Dakota,"by J.F. Valder, A.J. Long, A.D. Davis, and S.J. Kenner. Presented at the 62nd Rocky Mountain Section Geological Society of America meeting on April 22, 2010, in Rapid City, South Dakota.