[meteorite-list] Shattercone?

[Roman Jirasek]

Hi Mark

As mentioned before, glacier transport is probably the most probable answer.

Roman


--------------------------------------------------
From: "Mark" <lmlangenfeld at tds.net>
Sent: Saturday, January 08, 2011 5:20 PM
To: "Roman Jirasek" <romanj at sympatico.ca>; 
<meteorite-list at meteoritecentral.com>; "Larry Atkins" <thetoprok at aol.com>
Subject: Re: [meteorite-list] Shattercone?

> But doesn't that beg the question of transport?  How did a Sudbury 
> shattercone get to Lapeer County, MI?  So fas as I know, all of the remote 
> Sudbury ejecta remnants found to date have been largely fine-grained, 
> strata-bound deposits.
>
> Does anyone know of any instance of a recognizable shattercone being found 
> at a substantial distance (>200 km) from the actual impact site?
>
> Mark
>
> ----- Original Message ----- 
> From: "Roman Jirasek" <romanj at sympatico.ca>
> To: <meteorite-list at meteoritecentral.com>; "Larry Atkins" 
> <thetoprok at aol.com>
> Sent: Saturday, January 08, 2011 3:11 PM
> Subject: Re: [meteorite-list] Shattercone?
>
>
>> The light grey colour reminds me of my shattercones from the
>> Wanapitei crater near Sudbury. Nice find.
>>
>> Cheers,
>>
>> Roman Jirasek
>> www.meteoritelabels.com
>>
>>
>> --------------------------------------------------
>> From: "Dan Wray" <daniel_wray at comcast.net>
>> Sent: Saturday, January 08, 2011 1:31 PM
>> To: <meteorite-list at meteoritecentral.com>; "Larry Atkins" 
>> <thetoprok at aol.com>
>> Subject: Re: [meteorite-list] Shattercone?
>>
>>> Hi Larry,
>>>
>>> This looks pretty good to me.  While is is always hard to judge by 
>>> photos it looks consistant with Sudburry.  I have collected shatter 
>>> cones in New Mexico at the Sante Fe site and have a number of others 
>>> including Sudbury in my collection.
>>>
>>> Dan Wray
>>> COMETS
>>> ----- Original Message ----- 
>>> From: "Larry Atkins" <thetoprok at aol.com>
>>> To: <meteorite-list at meteoritecentral.com>
>>> Sent: Saturday, January 08, 2011 10:18 AM
>>> Subject: [meteorite-list] Shattercone?
>>>
>>>
>>>>
>>>>
>>>>
>>>> Hello List,
>>>>
>>>> I found this interesting rock close to my home in Lapeer County 
>>>> Michigan while walking in the woods this past September. It looks like 
>>>> a shatter cone to me but I've really no experience with them. One 
>>>> peculiar characteristic of the rock is that it's not smooth. All the 
>>>> rocks here have been smoothed and rounded during their glacial 
>>>> transport. I wonder if it's from Sudbury and was relatively close to 
>>>> home so it didn't have to travel very far and didn't erode too bad?
>>>> I did a few internet searches and didn't find any reference to impact 
>>>> debris being found in this area.
>>>>
>>>> Any shattercone/impact experts out there?
>>>> Comments and thoughts appreciated.
>>>>
>>>> http://s934.photobucket.com/albums/ad190/alienrockfarm/
>>>>
>>>> Sincerely,
>>>> Larry Atkins
>>>> IMCA # 1941
>>>> Ebay username  alienrockfarm 
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>>>
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>
>