Multi-proxy record of the Chicxulub impact at the Cretaceous-Paleogene boundary from Gorgonilla Island, Colombia Renne, Paul R. ; Arenillas, Ignacio ; Arz, José A. ; Vajda, Vivi ; Gilabert, Vicente ; Bermúdez, Hermann D. Abstract Publication: Geology Pub Date: June 2018 DOI: 10.1130/G40224.1 Bibcode: 2018Geo....46..547R