impact
Download
Skip this Video
Download Presentation
Impact!

Loading in 2 Seconds...

play fullscreen
1 / 29

Impact - PowerPoint PPT Presentation


  • 197 Views
  • Uploaded on

Impact!. Steven Dutch, Natural and Applied Sciences, University of Wisconsin - Green Bay. The Solar System. Nine Eight Planets Over 100,000 catalogued asteroids ???? Centaurs ???? KBO’s (including one disgruntled ex-planet) Millions of Comets. The Hazard. It’s all about Kinetic Energy

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Impact' - colby


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
impact

Impact!

Steven Dutch,

Natural and Applied Sciences, University of Wisconsin - Green Bay

the solar system
The Solar System
  • Nine Eight Planets
  • Over 100,000 catalogued asteroids
  • ???? Centaurs
  • ???? KBO’s (including one disgruntled ex-planet)
  • Millions of Comets
the hazard
The Hazard
  • It’s all about Kinetic Energy
  • K = ½ mv2
  • 10 m block @ 30 km/sec = 100 Kt
  • Multiply size by 10, multiply K by 1000
  • Comets (large v) have more energy
the impact process
The Impact Process
  • Atmospheric Entry
  • Contact-Compression
  • Penetration – Transient Crater
  • Excavation
  • Collapse
comets and planetary history
Comets and Planetary History
  • Superposition
  • Crater Saturation
  • Crater Degradation
recognizing craters on earth
Recognizing Craters on Earth
  • Craters rapidly destroyed by erosion
  • Circular geologic structures
  • Impact melts
  • Impact breccias
  • Shock metamorphism
  • Shatter cones
how did the moon form
How Did The Moon Form?
  • Co-Creation
  • Fission
    • Moon should orbit in Earth’s equatorial plane
  • Capture
    • Can account for plane of Moon’s orbit
    • Very hard to do in reality
  • Collision
    • Requires no skill at all
ad