University of Wisconsin-Madison, P.O. Box 90730, Albuquerque, NM 87199, USA
University of Texas-Austin, Department of Geological Sciences Jackson School of Geosciences, Austin, TX 78712, USA
University of Texas-Austin, Department of Geological Sciences Jackson School of Geosciences, Austin, TX 78712, USA
University of Wyoming, Department of Geology and Geophysics Department of Geology & Geophysics Department 3006 1000 East University Avenue, Laramie, WY 82071, USA