RomanK Posted November 19, 2010 Share Posted November 19, 2010 I have this specimen in my collection and this week I asked somebody in Technical University to split it out and polish the cut surface. I was a bit surprized cause have got quite poor result - very dark surface with cell structure you can see only through microscope Some close-ups with diff. magnification This picture I would see earlier without any polishing Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
pleecan Posted November 19, 2010 Share Posted November 19, 2010 (edited) Interesting pictures of Devonian wood. What sort of magnification on the last photo 40X ? Have you been able to detect evidence of other fossils in the wood matrix such as insects / worms / bore holes etc ? Assuming this is late Devonain material. After polish would chemical surface etching bring out details? PL Edited November 19, 2010 by pleecan Link to comment Share on other sites More sharing options...
RomanK Posted November 19, 2010 Author Share Posted November 19, 2010 (edited) Interesting pictures of Devonian wood. What sort of magnification on the last photo 40X ? Have you been able to detect evidence of other fossils in the wood matrix such as insects / worms / bore holes etc ? Assuming this is late Devonain material. After polish would chemical surface etching bring out details? PL Hi pleecan, magnification is only 7X. Unfortunately there wasn't any other unclusion except this one Yes that is upper Devonian layer. I didn't use any chemicals to polish esp. etching, but who knows... Edited November 19, 2010 by RomanK Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
Auspex Posted November 19, 2010 Share Posted November 19, 2010 Highly vascular tissue; I wonder how "woody" it was? "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
RomanK Posted November 19, 2010 Author Share Posted November 19, 2010 Highly vascular tissue; I wonder how "woody" it was? It's a question Auspex. I comunicated with person who found a big fragment of the tree at the same site as me including the stem (part connected to root), cone (I shown this afternoon) and some fragments of branches. He thinks my specimen is a root fragment. Other examples of his specimens Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
Terry Dactyll Posted November 19, 2010 Share Posted November 19, 2010 RomanK.... I think its a great success.... Those cells really stand out under magnification and obviously tell you more about the type of wood it is.....Good idea to investigate.... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
MikeD Posted November 20, 2010 Share Posted November 20, 2010 A pleasant surprise to see the cell structure. Link to comment Share on other sites More sharing options...
Shamalama Posted November 20, 2010 Share Posted November 20, 2010 Roman, Cool wood and I think that if you maybe soak the wood for about ten minutes in bleach that it may lighten it up enough to see the cellular structure. I know that the Opalized wood from Wyoming tends to lighten up when treated this way. -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
RomanK Posted November 20, 2010 Author Share Posted November 20, 2010 Roman, Cool wood and I think that if you maybe soak the wood for about ten minutes in bleach that it may lighten it up enough to see the cellular structure. I know that the Opalized wood from Wyoming tends to lighten up when treated this way. Thanks Dave, I'll think about that way to make the cell structure more obvious. Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
RomanK Posted November 21, 2010 Author Share Posted November 21, 2010 Result after using a bleach Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
pleecan Posted November 21, 2010 Share Posted November 21, 2010 Roman: Nice photo... Bleach etching does help.... if you have access to Metallurgical type microscope... you might want to try to capture an image.... Metallurgical microscopes are superior to regular stereo binocular microscopes with regards to optical resolution when applied at higher magnifications. PL Link to comment Share on other sites More sharing options...
RomanK Posted November 21, 2010 Author Share Posted November 21, 2010 Roman: Nice photo... Bleach etching does help.... if you have access to Metallurgical type microscope... you might want to try to capture an image.... Metallurgical microscopes are superior to regular stereo binocular microscopes with regards to optical resolution when applied at higher magnifications. PL Thanks PL, I will try to do that. Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
RomanK Posted November 21, 2010 Author Share Posted November 21, 2010 New detailes Magnified Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
MikeD Posted November 21, 2010 Share Posted November 21, 2010 Nice detail. Link to comment Share on other sites More sharing options...
Shamalama Posted November 21, 2010 Share Posted November 21, 2010 Hey, it worked! Woo-Hoo! That is some great cellular structure there Roman. -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
RomanK Posted November 21, 2010 Author Share Posted November 21, 2010 (edited) Hey, it worked! Woo-Hoo! That is some great cellular structure there Roman. Thank you Mike, thanks Dave for your useful recomendation! Edited November 21, 2010 by RomanK Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
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