[meteorite-list] Formation age of meteorites -
From: E.P. Grondine <epgrondine_at_meteoritecentral.com>
Date: Thu Apr 22 09:37:31 2004 Message-ID: <20001206004846.6857.qmail_at_web2008.mail.yahoo.com> Hello Harry - Not only have I not read Velikovsky, I do not intend to. It's clear that planets do not change orbit, and certainly haven't changed orbits in historical times - and its also more than abundantly clear that neither was a parent body for asteroids destroyed in historical times - I don't have the time to sort out the rest of Velikovsky's nonsense - even though that nonsense is of great interest to others, mainly historians of science - If anyone wants to try it, and not necessarily you, Harry, do not try to lump my work on historical impact events with that of Velikovsky - and do not try to lump any observations I may suggest about massive impact events early in the formation of our solar system together with his nonsense - That tactic will not work - EP --- HARRY WOOD <HARRYWOOD1_at_email.msn.com> wrote: > This sounds a little like Velakovsky....planets in > collision? Have any of > you read any of his theories? Harry W Wood > ----- Original Message ----- > From: "E.P. Grondine" <epgrondine_at_yahoo.com> > To: <meteorite-list_at_meteoritecentral.com> > Sent: Tuesday, December 05, 2000 10:03 AM > Subject: [meteorite-list] Formation age of > meteorites - > > > > Hello all - > > > > In the last couple of days we have seen the > > establishment of the dates of 2 phenomena, both of > > which seem to have occured 3.9 Gya - first, the > late > > period bombardment on Earth, and second, the end > of > > sedimentary processes on Mars. > > While it has long been put forward that the > > asteroids condensed out of a non-uniform disk, and > > that further these asteroid parent bodies > > differentiated through gravity, the differences in > the > > types of meteorites found is so great as to lead > me to > > suspect this explanation... > > If I remember correctly, a number of shock > > features associated with the age of formation of > > meteorites are dated around 3.9 Gya. > > A thought experiment, if you will: Add > together > > the estimated masses of the asteroids into a > parent > > body. Assume a comet of the magnitude and > velocity of > > Shoemaker-Levy strikes this parent body - to make > it a > > little more fun, call this parent body planet x - > > > > EP > > :o) > > > > > > > > > > > > __________________________________________________ > > Do You Yahoo!? > > Yahoo! Shopping - Thousands of Stores. Millions of > Products. > > http://shopping.yahoo.com/ > > > > _______________________________________________ > > Meteorite-list mailing list > > Meteorite-list_at_meteoritecentral.com > > > http://www.pairlist.net/mailman/listinfo/meteorite-list > > __________________________________________________ Do You Yahoo!? Yahoo! Shopping - Thousands of Stores. Millions of Products. http://shopping.yahoo.com/ Received on Tue 05 Dec 2000 07:48:46 PM PST |
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