re: You still don't get it: there are no big secondary craters

Space/Science » in reply to re: You still don't get it: there are no big secondary craters

Doug Ellison — 3/24/2005 5:24:54 PM (archived)

Just a thought - if ejecta velocity is so low, how the hell do Martian Meteroites make it to earth? From time to time they have to be travelling at martian escape velocity at least. What would be an interesting study is to find the distribution of ejecta velocity as a funciton of impactor angle, size, and velocity.

Doug

The whole thread (20 posts)

Crater count led Mars historians astray - Chris Vancil - 3/23/2005 12:46:10 AM
- Does this mean many ages are older or younger than thought? (n/t) - Robert Clark - 3/24/2005 3:43:23 PM
  - re: Does this mean many ages are older or younger than thought? - Robert Clark - 3/24/2005 4:11:28 PM
    - That's why the Cassini images are important... - E.P. Grondine - 3/24/2005 4:35:39 PM
- This correction should affect crater-counts... - alcaray - 3/24/2005 12:13:55 AM
  - You still don't get it: there are no big secondary craters - E.P. Grondine - 3/24/2005 1:59:03 AM
    - You don't get it: the piece was not about "big secondary craters" and made no mention of them (n/t) - alcaray - 3/24/2005 3:40:26 PM
    - re: You still don't get it: there are no big secondary craters - Doug Ellison - 3/24/2005 11:55:14 AM
      - re: You still don't get it: there are no big secondary craters - E.P. Grondine - 3/24/2005 4:27:27 PM
        
        re: You still don't get it: there are no big secondary craters - Doug Ellison - 3/24/2005 5:24:54 PM
        
        re: You still don't get it: there are no big secondary craters - E.P. Grondine - 3/24/2005 11:07:40 PM
- Let's be straight about who was wrong here - There are no Mars "historians" - E.P. Grondine - 3/23/2005 3:42:32 PM
  - It's just a manner of speaking Ed..... (n/t) - et - 3/24/2005 3:51:53 AM
- re: Crater count led Mars historians astray - BRFelix - 3/23/2005 3:56:08 AM
  - Mars geologists led themselves astray... - E.P. Grondine - 3/23/2005 3:38:35 PM
- Uhhh, ejections did not produce the "secondary" craters - E.P. Grondine - 3/23/2005 3:08:07 AM
  - Hellooo, Mars Has Less Than 1% of Earth's Atmospheric Pressure - Mark Eby - 3/23/2005 4:03:07 AM
    - You're right, of course... - E.P. Grondine - 3/24/2005 2:03:57 AM
    - re: Hellooo, Mars Has Less Than 1% of Earth's Atmospheric Pressure - Doug Ellison - 3/23/2005 10:45:37 AM
      - Thanks - You're right about frei punkt, and the very small craters, but it doesn't matter... - E.P. Grondine - 3/23/2005 3:23:35 PM

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