I remember reading an article not too long ago that provided much info on this, as well as a formula that might predict various outcomes, depending on which body in our solar system you were interested. I could not find it on my HDD, so I did a search on google for 'impact central uplift formula'

http://www.google.com.au/search?hl=en&q=impact+central+uplift+formula&meta=

and found this, it provides the formula.

http://www.bookrags.com/sciences/earthscience/impact-crater-woes-01.html

There is a fair amout of other good reading provided by the search.
All the best, Kevin.


From: "Charles O'Dale" <[EMAIL PROTECTED]>
To: <meteorite-list@meteoritecentral.com>
Subject: [meteorite-list] Re: Minimum crater size for central uplift ?
Date: Sun, 13 Nov 2005 15:25:01 -0400
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Michel:

IMHO, "it all depends". From my research, the best I could come up with:

quoted from my web-site: http://www.ottawa.rasc.ca/astronomy/earth_craters/intro.html

"In this article, I will present the craters that I have explored in the order of their size, starting with simple craters, moving to complex craters and finishing with multiring basins. The transition size between simple to complex craters is 2km in sediments and 4km in crystalline rocks. The transition size between complex to ringed basin craters is 10 to 50 km."

I would love more input on this.

Thanks
Charles O'Dale
Meeting Chair
Ottawa RASC
http://www.ottawa.rasc.ca/astronomy/earth_craters/index.html




Date: Sun, 13 Nov 2005 17:05:06 +0100
From: "michel  FRANCO" <[EMAIL PROTECTED]>
Subject: [meteorite-list] Minimum crater size for central uplift ?
To: <meteorite-list@meteoritecentral.com>
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Dear list

I was wandering what is the minimum size of terrestrial impact crater
that show a central uplift.
Best regards

Michel FRANCO
IMCA 3869



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