Hi Rob and thanks for sharing the photos. The low resolution X-ray tomography images are a bit difficult to interpret. Perhaps you could post some high res images? From what I can see, there do not appear to be very many annual growth rings. How many do you count? What year were these harvested?
Also two of the other 'branches' on your site look to me more like root balls (burls) with the roots cut off as David Vann has previously pointed out about Anne's example. They don't appear to have very many annual growth rings either...how many do you count? Personally, I suspect that the ones that look root-like may be examples of trees that grew on top of a meteorite sometime after the 1947 fall as opposed to examples of 1947 impacts. Still pretty cool though! Anyone else have any thoughts or different interpretations about Rob's images? -John ----- Original Message ---- From: Rob Wesel <nakhla...@comcast.net> To: impact...@aol.com; m...@mhmeteorites.com; drv...@sas.upenn.edu; meteorite-list@meteoritecentral.com Sent: Wed, January 12, 2011 9:26:15 PM Subject: Re: [meteorite-list] AD(?) - Sikhote-Alin in tree Hello all I picked up Matt Morgan's piece a couple years ago and did have it CT'd. Quite striking resolution and a non-destructive way to analyze the ring formation. I have not taken the images to any horticulturist to weigh in on but I'm willing to make the CT disc available to science for evaluation upon request. I was given the source by Matt and have no concerns regarding it's authenticity. http://www.nakhladogmeteorites.com/catalog/sikhot-tree.htm Two more tree specimens can be seen here and one of them is headed for CT due to purchaser request. I left them up but both are sold. Same source for all of these specimens including Anne's. http://www.nakhladogmeteorites.com/catalog/SA.htm Rob Wesel www.nakhladogmeteorites.com www.facebook.com/Nakhla.Dog.Meteorites www.facebook.com/Rob.Wesel ------------------ We are the music makers... and we are the dreamers of the dreams. Willy Wonka, 1971 ----- Original Message ----- From: <impact...@aol.com> To: <m...@mhmeteorites.com>; <drv...@sas.upenn.edu>; <meteorite-list@meteoritecentral.com> Sent: Wednesday, January 12, 2011 6:43 PM Subject: Re: [meteorite-list] AD(?) - Sikhote-Alin in tree Thank you Matt. And yes, OOoppps............. I did write twice the same link, so here is the real link to the picture of the 2 Vernadsky Sikhote-Alin. _http://www.impactika.com/images/2s-alin.jpg_ (http://www.impactika.com/images/2s-alin.jpg) Sorry! Anne M. Black _http://www.impactika.com/_ (http://www.impactika.com/) _IMPACTIKA@aol.com_ (mailto:impact...@aol.com) President, I.M.C.A. Inc. _http://www.imca.cc/_ (http://www.imca.cc/) In a message dated 1/12/2011 6:26:26 PM Mountain Standard Time, m...@mhmeteorites.com writes: I saw Anne's on display at the Denver show and was convinced it was the real deal. Plus the dealer who had it is an impeccable source and also a geologist. I bought one from him a couple of years ago and sold it to another dealer (don't want to drop names) who had it examined by an MRI at a well-known University. The University, if I recall, said the tree was old enough and the meteorite did in fact alter the tree growth structure (I.e. It wasn't hammered into a crack in the tree). Maybe he can chime in... Matt ------------------------ Matt Morgan Mile High Meteorites http://www.mhmeteorites.com P.O. Box 151293 Lakewood, CO 80215 -----Original Message----- From: impact...@aol.com Sender: meteorite-list-boun...@meteoritecentral.com Date: Wed, 12 Jan 2011 20:04:10 To: <drv...@sas.upenn.edu>; <meteorite-list@meteoritecentral.com> Subject: Re: [meteorite-list] AD(?) - Sikhote-Alin in tree WOW! Thank you Dr. Vann, Dr. Ted, Dolores, everybody, for all the great posts! I have learned a lot about trees today! ;-) Dr Vann, if I was a little closer to Philadelphia, I would be driving right over to show it to you. Your analysis and interpretation is amazing, and very helpful. If more pictures could help in any way just say so, I would be delighted to send you some close-ups. And just in case, I posted this one to my site: _http://www.impactika.com/images/satree2.jpg_ (http://www.impactika.com/images/satree2.jpg) Please do let me know what you see there. Thank you very much. And for everybody else, and since some did ask, here is a picture of the two Sikhote-Alins from the Vernadsky Institute: _http://www.impactika.com/images/satree2.jpg_ (http://www.impactika.com/images/satree2.jpg) Enjoy. And again, Thanks everybody! Anne M. Black _http://www.impactika.com/_ (http://www.impactika.com/) _IMPACTIKA@aol.com_ (mailto:impact...@aol.com) President, I.M.C.A. Inc. _http://www.imca.cc/_ (http://www.imca.cc/) ______________________________________________ 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
