Sudbury Basin Rock

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Sudbury Basin Rock

Postby David Entwistle » Sat Nov 22, 2014 9:37 pm

I don't claim to understand the details, but the CBC report about the Sudbury impact structure includes a picture of a great rock....


Image
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Re: Sudbury Basin Rock

Postby msg-meteorites » Sun Nov 23, 2014 9:56 pm

The results surprise me as there is a large Nickel mine in the area and i thought this indicated a meteorite rather than cometary impact.

Definitely a great looking rock though..... :-)
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Re: Sudbury Basin Rock

Postby Barwellian » Tue Nov 25, 2014 1:00 am

My thoughts too Martin....but then we may find yet that comets do have lots of nickel though...after all we have not definitely studied cometary material to any extent to date...and of course there is no reason why they should not vary just as much as meteorites.

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Re: Sudbury Basin Rock

Postby Mikesimms » Wed Dec 17, 2014 1:58 pm

The nickel at Sudbury is a red herring. It's origin is pretty well entirely terrestrial and derived from the target rocks in the aftermath of the impact.
Nice piece of rock though.
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Re: Sudbury Basin Rock

Postby msg-meteorites » Wed Dec 17, 2014 9:52 pm

I wasn't aware of that Mike, thanks for the info. Always thought it was from the impactor. Lots of beautiful and interesting impactites from there though :-)

Cheers

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