[meteorite-list] Michigan Meteorite

From: Finbarr Connolly <finconnolly71_at_meteoritecentral.com>
Date: Sat, 20 Jan 2018 22:33:53 +0000
Message-ID: <CACRq3w-TiJtXtPved5yGDaPt6wp9z2E-5NHpPHT0k11wxfFm6A_at_mail.gmail.com>

Greg,

A lot will depend on the weight of the impacting object of course; for
example the main mass of the 1813 Limerick Meteorite weighed 65 pounds and
buried itself two feet into the ground. The meteorite will generally be
travelling at a speed of between 200 and 400 mph when it hits the surface.

Regards,
Finbarr.

On Fri, Jan 19, 2018 at 5:27 PM, Sam Sabba via Meteorite-list <
meteorite-list at meteoritecentral.com> wrote:

> Hello all!
>
> I sent a post in a few days ago but I think I caused confusion by sending
> it via my other email address that was not the one I registered with.
> Let's see if this works better.
>
> My 7 year old daughter begged me to take her meteorite hunting after I
> picked her up form school this past Wednesday. My first reaction was to
> say no given the long odds, the cold, and the fact that she would miss a
> practice. She persisted, and then I realized I was being a fool and only
> thinking of the effort and poor odds involved, and not of the journey and
> wonderful scientific lesson itself! So we drove the 1 hour (easy compared
> to the travel time for the rest of you I see) and hunted a collection of
> Hamburg athletic fields. We did not find anything, but had a good time in
> the process. I see now that of course several pieces have been found
> (congrats to those that have found some).
> I am completely new to this, and I wanted to ask a few questions to
> satisfy my curiosity as well as my daughter's. Now that the professionals
> are in town, we will not be bothering to try again. :)
> During our search, we had expected that any pieces would have gone down
> into the ground at least a little bit. I however see that several of the
> pieces that have been found were just laying in the snow on top of a frozen
> lake. Is it normal for pieces of a meteorite to not land with enough force
> to break through ice or even frozen soil? Would they normally at least
> break through *unfrozen* soil, such as on a lawn or athletic field?
> Also, given the approximately 2 inches of snow we had on the ground here,
> would heat be produced from the meteorite itself or from it's impact that
> would have melted snow around it in any meaningful way?
> My daughter is probably doing her show-and-tell presentation at school as
> I type this (using a regular rock we found to represent the potential
> meteorite) so it is too late to provide her details for that, but we are
> both still curious.
> Thank you and good luck to those who will still be looking!
>
> Greg
>
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Received on Sat 20 Jan 2018 05:33:53 PM PST