Re: [meteorite-list] Shattercone?
List, Elton, Thanks for the comments, input and congrat's people. I still have a lot of questions regarding origin though and why it hasn't been smoothed from glacial transport. I doubt it's from mining since there isn't any of that going on in my area other than gravel. We have many gravel and sand pits due to the glacial activity that pushed and piled up rock and sand only to retreat and leave huge mounds that are now the hills of my area. The exact coordinates of the find are here. 43 00'06.58N 83 22'17.85W Can a particular shattercone be linked to a specific event? Sincerely, Larry Atkins IMCA # 1941 Ebay username alienrockfarm -Original Message- From: MEM mstrema...@yahoo.com To: Larry Atkins thetop...@aol.com; meteorite-list@meteoritecentral.com Sent: Sat, Jan 8, 2011 12:27 pm Subject: Re: [meteorite-list] Shattercone? It would help to have the exact coordinates and circumstances as a substantial area of the UP of Michigan is a giant mining network. Given this fact I cannot rule out a blasting artifact but can't rule out a shatercone either. A formation/deposit was recently identified in Michigan which was impactite from Sudbury. I have samples in study from another misidentified formation which I believe it from Sudbury. Elton - Original Message From: Larry Atkins thetop...@aol.com To: meteorite-list@meteoritecentral.com Sent: Sat, January 8, 2011 12:18:29 PM 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 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Shattercone?
Hello Larry, Elton, and List, Can a particular shattercone be linked to a specific event? Yes, it can - at least with regard to the rocks they are made of! a) Shatter cones (or one word: shattercones) from the Steinheim Basin, Germany or from the Sierra Madera structure in western Texas were formed from fine-grained limestone so that their structures (striations) are particulrly well developed. b) Shatter cones from the Wells Creek Basin, Tennessee are made of dolomite rock. c) Along the southern margin of the Sudbury Basin shatter ones are made of the so-called Mississagi quartzite. d) Shatter cones from Gosses Bluff in Australia are made of quartzite, too. Shatter cones form in all kinds of target rocks but the coarser the rocks the cruder the shatter cones and the larger their striations. Huge shatter cones have been located in a cliff along a wave-cut shoreline on Patterson island, one of the islands in the Slate Islands impact structure, Lake Superior, Canada (the one pictured on p. 39 of 'Traces of Catastrophe' measures at least 7 meters at the eposed base but Bevan says that its true width may even exceed 20 m at its base!). References: O.R. Norton (2002) The Cambridge Encyclopedia of Meteorites, pp. 291-294. B.M. French (1998) Traces of Catastrophe (LPI Contribution No. 954, pp. 36-41). Best wishes, Bernd (in Germany) To: thetop...@aol.com meteorite-list@meteoritecentral.com __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Shattercone?
Sorry, folks, ... not Bevan but = Bevan M. French = and: particularly instead of particulrly ;-) Bernd To: thetop...@aol.com meteorite-list@meteoritecentral.com __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[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 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Shattercone?
Hi Larry and List, Larry asked: I found this interesting rock close to my home in Lapeer County Michigan while walking in the woods this past September. It sure does look like a genuine shattercone! Congrats! It might be a shattercone from the Sudbury impact but another possibility might be the Serpent Mound structure in Ohio from where shattercones and coesite have been reported! Maybe Paul H. (oxytropidoce...@cox.net) has more on that! Best wishes, Bernd To: thetop...@aol.com meteorite-list@meteoritecentral.com __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Shattercone?
Thanks for the congrat's, Bernd. I was quite surprised when I looked down and saw it. The funny thing is that when you look for things you tend to find them. A friend was with me at the time and I told him to be on the lookout for anything out of the ordinary, artifacts, odd rocks, etc.. A minute or two later I had the eureka moment when I spotted this shattercone falling out of the hillside. My friend couldn't figure out what I was so excited about! Some people just don't get it. : ) I should probably have it verified in some way and perhaps it could be traced to its origin. I would love to know it's story. Perhaps someone can enlighten me as to procedure for impact material reporting and such. Happy New Year! Sincerely, Larry Atkins IMCA # 1941 Ebay username alienrockfarm -Original Message- From: Bernd V. Pauli bernd.pa...@paulinet.de To: Larry Atkins thetop...@aol.com; meteorite-list@meteoritecentral.com Sent: Sat, Jan 8, 2011 9:47 am Subject: [meteorite-list] Shattercone? Hi Larry and List, Larry asked: I found this interesting rock close to my home in Lapeer County Michigan while walking in the woods this past September. It sure does look like a genuine shattercone! Congrats! It might be a shattercone from the Sudbury impact but another possibility might be the Serpent Mound structure in Ohio from where shattercones and coesite have been reported! Maybe Paul H. (oxytropidoce...@cox.net) has more on that! Best wishes, Bernd To: thetop...@aol.com meteorite-list@meteoritecentral.com __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
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 thetop...@aol.com To: meteorite-list@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 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Shattercone?
Larry, I live near and have spent a lot of time collecting shatter cones from Kentland, In. That has all the earmarks of a weathered shatter cone to me. Do you have any sharper photos? Best, Steve Steve Witt IMCA #9020 http://imca.cc/ --- On Sat, 1/8/11, Larry Atkins thetop...@aol.com wrote: From: Larry Atkins thetop...@aol.com Subject: [meteorite-list] Shattercone? To: meteorite-list@meteoritecentral.com Date: Saturday, January 8, 2011, 11:18 AM 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 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Shattercone?
It would help to have the exact coordinates and circumstances as a substantial area of the UP of Michigan is a giant mining network. Given this fact I cannot rule out a blasting artifact but can't rule out a shatercone either. A formation/deposit was recently identified in Michigan which was impactite from Sudbury. I have samples in study from another misidentified formation which I believe it from Sudbury. Elton - Original Message From: Larry Atkins thetop...@aol.com To: meteorite-list@meteoritecentral.com Sent: Sat, January 8, 2011 12:18:29 PM 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 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
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_w...@comcast.net Sent: Saturday, January 08, 2011 1:31 PM To: meteorite-list@meteoritecentral.com; Larry Atkins thetop...@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 thetop...@aol.com To: meteorite-list@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 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Shattercone?
Hi Mark As mentioned before, glacier transport is probably the most probable answer. Roman -- From: Mark lmlangenf...@tds.net Sent: Saturday, January 08, 2011 5:20 PM To: Roman Jirasek rom...@sympatico.ca; meteorite-list@meteoritecentral.com; Larry Atkins thetop...@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 rom...@sympatico.ca To: meteorite-list@meteoritecentral.com; Larry Atkins thetop...@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_w...@comcast.net Sent: Saturday, January 08, 2011 1:31 PM To: meteorite-list@meteoritecentral.com; Larry Atkins thetop...@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 thetop...@aol.com To: meteorite-list@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 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Shattercone?
Hi Larry and List! I only live 1 hour. away from the Serpent mound crater and have deer hunted there for years, before I new anything about meteorites and shatter cones and even before I knew there was a crater there. The rocks there are (yellow-tan) and the shatter cones from that area are the same color! But your stone looks a lot like a shatter cone that I have seen! This spring I will go too Brush creek (edge of serpent mound), Adams county Ohio and try to find my own shatter cones. Looks like a great stone Larry!congrats! Dave - Original Message From: Bernd V. Pauli bernd.pa...@paulinet.de To: Larry Atkins thetop...@aol.com; meteorite-list@meteoritecentral.com Sent: Sat, January 8, 2011 12:47:50 PM Subject: [meteorite-list] Shattercone? Hi Larry and List, Larry asked: I found this interesting rock close to my home in Lapeer County Michigan while walking in the woods this past September. It sure does look like a genuine shattercone! Congrats! It might be a shattercone from the Sudbury impact but another possibility might be the Serpent Mound structure in Ohio from where shattercones and coesite have been reported! Maybe Paul H. (oxytropidoce...@cox.net) has more on that! Best wishes, Bernd To: thetop...@aol.com meteorite-list@meteoritecentral.com __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list