[meteorite-list] How much survives entry?

From: Steve Dunklee <sdunklee72520_at_meteoritecentral.com>
Date: Mon, 7 Dec 2009 06:35:22 -0800 (PST)
Message-ID: <602812.406.qm_at_web33206.mail.mud.yahoo.com>

mass converted to light would require fusion. all of the mass of a meteorite is retained by the earth. most is dust from ablation. how much reaches the ground depends on a lot of variables like velocity of impact angle of impact, specific gravity of meteorite, water content or volatile gas content of meteorite. even the humidity of the air or density of ion count in the magnetosphere. in most cases all of the meteorite vaporises. or explodes. from impact with the ionosphere. its very thin but like hitting a brick wall at 17kmph. so saying how much is going to survive is like asking how many licks it will take to get to the center of a tootsiepop lol


--- On Thu, 12/3/09, Chris Peterson <clp at alumni.caltech.edu> wrote:

> From: Chris Peterson <clp at alumni.caltech.edu>
> Subject: Re: [meteorite-list] How much survives entry?
> To: "meteorite list" <meteorite-list at meteoritecentral.com>
> Date: Thursday, December 3, 2009, 9:39 PM
> I think that you can usually figure
> that 95-99% of the mass of parent meteoroid is lost. That
> seems pretty consistent with the estimated mass of observed
> fireballs compared with the mass of recovered meteorites.
>
> Obviously, what is typical is pretty loosely defined; I
> don't doubt that there are exceptions to the rule.
>
> Chris
>
> *****************************************
> Chris L Peterson
> Cloudbait Observatory
> http://www.cloudbait.com
>
>
> ----- Original Message ----- From: "Richard Kowalski"
> <damoclid at yahoo.com>
> To: "meteorite list" <meteorite-list at meteoritecentral.com>
> Sent: Thursday, December 03, 2009 5:45 PM
> Subject: [meteorite-list] How much survives entry?
>
>
> > Does anyone have a rough estimate on how much
> material, say ordinary chondrite, is lost during entry? 80%
> converted to light, heat and dust? 90%? 99.9%?
>
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Received on Mon 07 Dec 2009 09:35:22 AM PST