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Re: (meteorobs) meteorite specific gravity
GeoZay@aol.com wrote:
>
> I'm trying to find some approximate specific gravities for meteorites. Does
> anyone know what the specific gravities are for a Stony, Stony/Iron and Iron
> meteorite? I'm not looking at too precise figures here...just some ball park
> ideas. I also realize that the three major classifications are again further
> reduced to various groupings...so a range of specific gravities would
> suffice. thanks!
> George Zay
Reference:
Physics of Meteor Flight in the Atmosphere
Ernst J. Opik
Interscience, 1958
Typical stoney 3.4
iron 7.8
The iron based bodies typically have an average nickel content of 8.5%.
You can't just prorate the density and the percentage, because various
cyrstal lattice structures can form, so just guess as 7.8 or a slightly
lower value.
Stony-irons lie somewhere between the above values.
If your thinking of a model of meteor flight, I have a modified version
of the S&T jan 87 program which uses a smoother interpolation technique
and an improved user input options. The model is otherwise unchanged.
OTH, it requires Quick Basic to run the source code. I can aslo provide
a compiled version, when I find my code and notes :-)
I'm in the middle of a move!
Regards,
John
--
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John Ohrt, Regina, SK, Canada
johrt@cableregina.com
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