T. Rex and the Crater of Doom the Brazos river that a tsunami has swept across the Gulf of Mexico millions of years earlier. The discovery was made thanks to a graduate student named Alan Hildebrand that notified Alvarez of the evidence of a crater on the Yucatan peninsula, which had never been published in the scientific literature by the Mexican petroleum geologists that had found it. The age of the crater needed to be determined if it was going to be a candidate for the KT boundary impact, but access to the region was limited by the crater being buried over time and the core samples
Rochechouart crater of the value and the interest of the Rochechouart impact structure. Rochechouart crater The Rochechouart crater is an impact crater. The initial crater morphology has been lost by erosion and there is no crater visible on site. The proper term to designate what remains of the Rochechouart impact crater is Rochechouart impact structure. The term “astrobleme” (wound of star in greek) introduced by R. Dietz since 1947 together with shatter cones as a symptomatic finger print for identifying an eroded impact crater on Earth, is also used to designate the Rochechouart impact structure. In 2008 the French State acknowledged the