Hi all - It turns out the geological structure is an impact rebound - thanks to Jim for the info.
E.P. Grondine Man and Impact in the Americas --- On Wed, 7/14/10, [email protected] <[email protected]> wrote: There are a number of Serpent mound shatter cones for sale on ebay. Here's the link to one: http://cgi.ebay.com/Excellent-Serpent-Mound-Crater-Shatter-cone-both-sides- /370393656020?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item563d2eaad4_ http://cgi.ebay.com/Excellent-Serpent-Mound-Crater-Shatter-cone-both-sides-/37039 3656020?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item563d2eaad4) Jim K > In a message dated 7/14/2010 12:22:50 P.M. Central Daylight Time, > [email protected] writes: > Hi all - > > I have always read that Serpent Mound, Ohio was built on top of an impact > rebound, but the other evening I was told that it was built on top of the center of a collapsed volcanic caldera. While functionally it does not make any difference, as I don't remember any shatter cones from it being offered for sale on the list, and I am wondering. E.P. Grondine Man and Impact in the Americas > > > > ______________________________________________ > Visit the Archives at > http://www.meteoritecentral.com/mailing-list-archives.html > Meteorite-list mailing list > [email protected] > http://six.pairlist.net/mailman/listinfo/meteorite-list > > ______________________________________________ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list

