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Impact Craters Meteorites & Asteroids

Impact Craters Meteorites & Asteroids. Meteorite Impacts*. Meteoroids < 1m in diameter tend to burn up in atmosphere Meteoroids > 1km can cause much damage Earth has more than 100 craters > 0.1km in diameter. *Notes from meteor handout. Asteroid Impacts*.

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Impact Craters Meteorites & Asteroids

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  1. Impact CratersMeteorites & Asteroids

  2. Meteorite Impacts* • Meteoroids < 1m in diameter tend to burn up in atmosphere • Meteoroids > 1km can cause much damage • Earth has more than 100 craters > 0.1km in diameter. *Notes from meteor handout

  3. AsteroidImpacts* • There are many large basins and eroded craters that are suspected to be ancient asteroid sites. • An asteroid that is 1 km in diameter has more energy than 100 times all the nuclear weapons in the world right now. *Notes from meteor handout

  4. How are craters formed? Check out website: • http://miac.uqac.ca/MIAC/crater.htm

  5. Some craters in the world

  6. Eslöv meteor • Located in Eslöv Biennale, Sweden. • Hit ~6:00 am on November 3rd, 2007 • Crater ~ 15 m in diameter

  7. Barringer crater* • Located in Arizona, USA • Weighs approx. 200,000 tons • Meteor was ~ 50m in diameter (~1/2 soccer field) • Crater - 1.186 km diameter *Notes from meteor handout http://www.solarviews.com/eng/tercrate.htm

  8. Manicougan Crater • Located in Quebec, Canada. • ~200 to 300 million years old • ~95 km across • 5th largest

  9. Kara-Kul • Located in Parmir Mountains in Tajikistan. • ~45km diameter

  10. Clear Water Lakes Crater • Located in Quebec, Canada. • Only example on earth of pair impact craters. • Demonstrate multiple hit of cometary debris • Larger crater ~32 km • Smaller crater ~22 km

  11. Mistastin Lake crater, • Located in Nfld & Labrador, Canada • 28 km diameter http://www.solarviews.com/cap/earth/mistastn.htm

  12. Deep Bay Crater • Located in Saskatchewan, Canada • ~13 kilometer diameter • ~100 million years old http://www.solarviews.com/eng/tercrate.htm

  13. Wolfe Creek Crater • Located in Wolfe Creek National Park, Australia • ~0.875km diameter • Crater rim raises ~25m above plain level • Crater floor is ~50m below crater’s rim http://www.solarviews.com/cap/earth/wolf.htm

  14. Impacts around the world • Nifty website! http://geology.com/meteor-impact-craters.shtml

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