LOZANO, Joel, ESPEJEL-GARCÍA, Vanessa Verónica, and VILLALOBOS-ARAGON, Alejandro, Facultad De Ingenieria, UNIVERSIDAD AUTONOMA DE CHIHUAHUA, CIRCUITO NO. 1, CAMPUS UNIVERSITARIO 2, Chihuahua, 31125, Mexico, jojoellozano@hotmail.com

AVILA, Victor, University of Texas at El Paso, El Paso, TX 79968, avilavictorm@gmail.com, DENA, Oscar, Centro de Informacion Geografica, Universidad Autonoma de Ciudad Juarez, Juarez, 32310, Mexico, MONCADA, Manuel, Geology, The University of Texas of El paso, El Paso, TX 79968, DOSER, Diane I., Department of Geosciences, University of Texas at El Paso, El Paso, TX 79936, and LEYVA, Jesus E., Centro de Informacion Geografica, Universidad Autonoma de Ciudad Juarez, Avenida del Charro, Mar del Norte, Ciudad Juarez, 32310, Mexico

HOFFMAN, Lauren L., Department of Geography-Geology, Illinois State University, 100 N. University Street, Normal, IL 61761, llhoffm@ilstu.edu and TRANEL, Lisa M., Department of Geography-Geology, Illinois State University, 100 N. University Street, Normal, IL 61790

BRUNSTAD, Keith A., Earth Sciences, SUNY College at Oneonta, Oneonta, NY 13820, brunstka@oneonta.edu, WOLFF, J.A., School of the Environment, Washington State University, Pullman, WA 99164, and GARDNER, Jamie N., Gardner Geoscience, 14170 Hwy 4, Jemez Springs, NM 87025

O'KEEFFE, Kevin, Department of Earth and Atmospheric Sciences, University of Houston, Rm.312, Science & Research Bldg.1, University of Houston-Main Campus, Houston, TX 77204, k6575251@yahoo.com and MURPHY, Michael A., Earth and Atmos. Sci, University of Houston, 4800 Calhoun Rd, Houston, TX 77204

DAVIS, Joshua K., Department of Geological Sciences, University of Texas, Austin, TX 78712-1692, buddavis@utexas.edu, HUDSON, Mark R., U.S. Geological Survey, Box 25046, DFC, MS 980, Denver, CO 80225, SLATE, Janet L., U.S. Geological Survey, Box 25046, DFC, MS 406, Denver, CO 80225, and GRAUCH, V.J.S., U.S. Geological Survey, Box 25046, DFC, MS 964, Denver, CO 80225

MAJEWSKI, David J., Department of Earth and Environmental Sciences, University of Iowa, Iowa City, IA 52242, david-majewski@uiowa.edu, ROWE, Michael C., School of Environment, University of Aukland, Aukland, 92019, New Zealand, and LARSON, Peter B., School of the Environment, Washington State University, Pullman, WA 99164-2812