Pliocene impact crater discovered in colombia-petrological evidences

V. Vajda 1 , A. Ocampo 2 , J. Gómez 3 , J. A. García 4 , A. Lindh 5 , A. Scherstén 5 , A. Pitzsch 6 , L. Page 5 , A. Ishikawa 7 , K. Suzuki 8 , R. S. Hori 9 , M. Buitrago 10 , J. A. Flores 10 , D. Barrero 11 ; 1 Department of Palaeobiology, Swedish Museum of Natural History, SE–104 05 Stockholm, Sweden (Vivi.Vajda@nrm.se); 2 NASA HQ, Science Mission Directorate, Washington DC 20546, US; 3 Colombian Geological Survey, Diagonal 53 #34–53 Bogotá, Colombia; 4 Universidad Libre, Sociedad astronomica ANTARES, Cali, Colombia; 5 Department of Geology, Lund University, Sweden; 6 MAX–lab, Lund University, Sweden/ Helmholtz Zentrum Berlin,Institute Methods and Instrumentation for Synchrotron Radiation Research, Berlin, Germany; 7 Department of Earth Science & Astronomy, The University of Tokyo, Japan; 8 IFREE/SRRP, Japan Agency for Marine–Earth Science and Technology, Natsushima, Yokosuka 237– 0061, Japan; 9 Department of Earth Science, Graduate School of Science and Engineering, Ehime University, 790– 8577, Japan; 10 Consultant geologist, Bogotá, Colombia; 11 Department of Geology, University of Salamanca, Spain.