The QCC Posted September 2, 2015 Share Posted September 2, 2015 The photos show a thin section I made from a Horn Coral fossil I purchased from the Rock Shed. Two thin section slides were made from the cut off section. The fossil is approx. 12mm across the section. Photo 1 is the fossil after cutting off two sections. Photo 2 is a complete scan of a thin section at 20x mag. in Plane Polarized Light Photo 3 is is a complete scan of same area at 20x mag. with Crossed Polars Photo 4 is a detail at 40x mag. with Crossed Polars and a Lambda plate in the light path. The thin section slides were photographed with a Canon 5D MkII camera with a Meiji 2.5x projection lens on a Labomed LB-592 polarizing microscope. Post processing was in Adobe Lightroom. 2 Link to comment Share on other sites More sharing options...
Ridgehiker Posted September 2, 2015 Share Posted September 2, 2015 Congrats. Those are really well done. I use to make thin sections and acetate peels in the lab and it could be technically challenging. Did you learn to do those on your own? Also, kudos on the photography. We'd have to send everything to the photo guys who used film...then hoped everything could be reproduced accurately in print. Often, if the detail was difficult to bring out, everything was hand drawn! Anyways. Wow! You are in Canada, so If you are looking for some particular fossil or microfossils to experiment with, let me know and I'll send you some freebies. Link to comment Share on other sites More sharing options...
The QCC Posted September 2, 2015 Author Share Posted September 2, 2015 Thank you for the nice comment. Yes, I learned to make thin sections the hard way. Reading articles on the web and experimenting. Many thanks for the offer of fossils. I would certainly like to make thin sections from small pieces. Just no dinosaur jaws. Presently I buy them from The Rock Shed in the USA. Thanks Link to comment Share on other sites More sharing options...
MarcoSr Posted September 7, 2015 Share Posted September 7, 2015 Very well done. Excellent pictures. Marco Sr. "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
FossilDAWG Posted October 2, 2015 Share Posted October 2, 2015 Very nice sections and photos. That's a real skill. Is this your hobby, or do you do that kind of thing professionally? I bet you could pick up some $$ doing that on contract for researchers. Don Link to comment Share on other sites More sharing options...
The QCC Posted October 2, 2015 Author Share Posted October 2, 2015 I make thin sections as a job to justify having a big polarizing microscope and a large format printer. In my spare time I am retired. As for selling thin section slides, the Chinese have under cut the market. I can purchase credible thin section slides from China for less than $10.00CDN Link to comment Share on other sites More sharing options...
Blastoid Posted October 28, 2015 Share Posted October 28, 2015 Superb work! I have flat laps and buckets of things I'd dearly love to have sectioned and photographed, but haven't been able to justify the cost of a polarizing scope. If you're looking for a research project, you're under 2 hours from Arkona, home to dozens of coral species, easy collecting. Sorting them out would be entertaining. Small fragments of Devonian armored fish have amazing microscopic internal structure that would be gorgeous. Ontario "Petoskey Stones" would also make cool images. They're cool colonial corals, little known from Ontario, famous from Michigan. I look forward to seeing more of your images! Link to comment Share on other sites More sharing options...
The QCC Posted October 28, 2015 Author Share Posted October 28, 2015 Thank you for the Arkona reminder. I have marked my calendar for a visit in May of 2016. Link to comment Share on other sites More sharing options...
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