Luis Alvarez studied deposits at the Cretaceous-Tertiary boundary and found an abnormal amount of iridium.
Luis Alvarez studied deposits at the Cretaceous-Tertiary boundary and found an abnormal amount of iridium. He proposed that a meteor had struck the Earth, but for years the theory was considered unlikely. Then a reporter noted that geophysicist Glen Penfield may have already discovered the sought-after crater. Studies showed that this crater on the Yucatan peninsula was about the right size and age. For ten points, name this crater, likely the site of the meteor impact that killed the dinosaurs.
Luis Alvarez studied deposits at the Cretaceous-Tertiary boundary and found an abnormal amount of iridium.
{Chicxulub} crater (pronounced “cheek-shoo-loob”, accept close or phonetic pronunciations, accept {impact hypothesis} before “meteor”)