A Tale of Two Rocks
http://www.smithsonianmag.com/smithsonian/issues98/apr98/object.html

Smithsonian Institution


This Smithsonian Magazine site provides an introductory level summary of the discovery of the Chicxulub impact site. The article describes geologic evidence used to interpret the impact structure and the implications these have for the Cretaceous/Tertiary mass extinction. Other topics include the extinction of dinosaurs, tsunami waves, wildfires, shocked quartz, impact melt rocks, impact breccias, and the use of subsurface geophysical and drill core data.

This resource is referenced here:
Subject: Biology, Geoscience:Lunar and Planetary Science, Geology
Resource Type: Audio/Visual:Images/Illustrations, Scientific Resources:Overview/Reference Work
Special Interest: Hazards
Theme: Teach the Earth:Course Topics:Planetary Science, Teach the Earth:Incorporating Societal Issues:Hazards
Focus on the Cretaceous: Paleogeography, Paleontology
Topics: Solar system, Time/Earth History, Biosphere, Solid EarthKeywords: Mexico, Yucatan