Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Mass extinctions caused by large bolide impacts.

L W Alvarez1

  • 1Lawrence Berkeley Laboratory, University of California, Berkeley, USA.

Physics Today
|July 1, 1987
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The Precursor of the Cretaceous-Tertiary Boundary Clays at Stevns Klint, Denmark, and DSDP Hole 465A.

Science (New York, N.Y.)·1984
Same author

Impact theory of mass extinctions and the invertebrate fossil record.

Science (New York, N.Y.)·1984
Same author

The end of the cretaceous: sharp boundary or gradual transition?

Science (New York, N.Y.)·1984
Same author

Experimental evidence that an asteroid impact led to the extinction of many species 65 million years ago.

Proceedings of the National Academy of Sciences of the United States of America·1983
Same author

Iridium anomaly approximately synchronous with terminal eocene extinctions.

Science (New York, N.Y.)·1982
Same author

Asteroid extinction hypothesis.

Science (New York, N.Y.)·1981

Earth

Area of Science:

  • Paleontology
  • Planetary Science
  • Geology

Background:

  • The Cretaceous–Paleogene (K–Pg) extinction event occurred 65 million years ago.
  • This event marked the end of the dinosaurs' reign and the rise of mammals.

Purpose of the Study:

  • To investigate the cause of the K–Pg mass extinction.
  • To understand the transition from the Mesozoic to the Cenozoic Era.

Main Methods:

  • Analysis of geological and fossil records.
  • Reconstruction of Solar System debris impact events.

Main Results:

  • Strong evidence links the K–Pg extinction to the impact of a large celestial body.
  • The impact event triggered global environmental changes, causing mass extinctions.
Keywords:
NASA Discipline ExobiologyNon-NASA Center

Related Experiment Videos

Conclusions:

  • Asteroid or comet impacts are a significant factor in Earth's mass extinction events.
  • These cosmic collisions fundamentally altered the course of life on Earth, paving the way for mammalian dominance.