Laura Rodriguez, Texas A&M University, Texas Water Resources Institute, College Station, TX, United States, Rosario Sanchez, Texas A&M University, Texas water Resources Institute, College Station, TX, United States, Hongbin Zhan, Texas A&M University, Department of Geology and Geophysics, College Station, TX, United States and Peter S. K. Knappett, Texas A&M University, Department of Geology & Geophysics, Collelge station, United States