Jeff:
A general "rule of thumb" RE: crater characteristics:
TRANSITION BETWEEN SIMPLE - COMPLEX
Moon - 15 km
Mercury and Mars - 7 km
Earth - 3 to 5 km
.... but the correct answer is "it depends".
I tried to answer this question at:
http://www.ottawa.rasc.ca/astronomy/earth_craters/intro.html
Charles O'Dale
Meeting Chair
Ottawa RASC
http://www.ottawa.rasc.ca/astronomy/earth_craters/index.html
Date: Wed, 15 Mar 2006 23:01:29 +1100
From: "Jeff Kuyken" <[EMAIL PROTECTED]>
Subject: [meteorite-list] Impact Structures - Simple vs Complex?
To: "Meteorite List" <[email protected]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="Windows-1252"
Here's a question for those of you more familiar with impact structures on
Earth. I believe I saw somewhere that craters fall into 2 main categories?
simple and Complex with the later having a central uplift, concentric
rings,
etc among other things.
My question is: How small can a complex crater be? Is there a definitive
size restraint or does it completely depend on a multitude of variables
such
as the make-up of the impacting body, velocity, impact angle, target rock,
etc?
Any help is appreciated,
Jeff Kuyken
Meteorites Australia
www.meteorites.com.au
______________________________________________
Meteorite-list mailing list
[email protected]
http://six.pairlist.net/mailman/listinfo/meteorite-list
