Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706
Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706 ; Department of Geology, University of Puerto Rico, Mayaguez, PR 00681-9017 ;
Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706 ;
Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706 ;
Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706 ;
Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706 ; Department of Geology, The College of Wooster, Wooster, OH 44691 ;
Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706 ;
School of Applied Geology, Curtin Univ., Perth, WA 6845 Australia ;
Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706