The QCC Posted March 16, 2017 Share Posted March 16, 2017 Can anyone suggest a good reference with lots of pictures about micro sized fossils? I would like to try and determine if the shapes are fossils of animal or vegetable matter. I make thin section slides of stones (less than 50mm in dia,) and occasionally see shapes that I think might be fossils. The shapes are small, generally less than 3mm in length and width. This is a sample of what I have found in local stones. 5 Link to comment Share on other sites More sharing options...
sdsnl Posted March 16, 2017 Share Posted March 16, 2017 That's very interesting, the bottom of the first slide looks kind of like an insect wing. Link to comment Share on other sites More sharing options...
Socket Posted March 19, 2017 Share Posted March 19, 2017 Nice thin sections. Those fossils are recognisable. The sedimentology books below have quite a few pictures with info on fossils under thin section. I have both but prefer the first listed (there are a couple for sale on ebay at the moment for A LOT cheaper than what I purchased it for...). I believe there are also pdf's floating around the web. - A Color Guide to the Petrography of Carbonate Rocks: Grains, Textures, Porosity, Diagenesis (AAPG Memoir 2003 edition). <- There are some previews available for this on geoscienceworld/scribd etc... - A Color Atlas of Carbonate Sediments and Rocks Under the Microscope. Adams and MacKenzie Edit: Just remembered. There is the 1984 book Atlas of sedimentary rocks under the microscope, There are only a few pages dedicated to bioclasts/fossils though. You can view and possibly download it... 1 Link to comment Share on other sites More sharing options...
The QCC Posted March 19, 2017 Author Share Posted March 19, 2017 Thank you for the references. I was able to get a used copy of " A Color Atlas of Carbonate Sediments and Rocks Under the Microscope " from Amazon at a reasonable price. Your choice of " A Color Guide to the Petrography of Carbonate Rocks " is well beyond my budget, although it is possible to read it online from The University of Derby. Thank you Link to comment Share on other sites More sharing options...
Foram-Mike Posted March 21, 2017 Share Posted March 21, 2017 The elongate chambered structure in image 6 could be a Nodosaria or Dentalina if the size is below 10mm see e.g. www.foraminifera.eu/querydb.php?genus=Dentalina&aktion=suche We just have a few thin section of foraminifera in our catalog: www.foraminifera.eu/querydb.php?fototype=thin+section&aktion=suche Identification to the genus or species from thin sections needs special expertise. Maybe for you to know it is a foram is enough ? Image from Cushman, J., A., 1923: The Foraminifera of the Atlantic Ocean. Part 4. Lagenidae. Bull. U.S. Natl. Mus. 104. Book Smithsonian Institution United States National Museum Bulletin 104. Plate 15, Fig. 1 2 Foram-Mike, Owner of www.foraminifera.eu So far we show 12000+ images of foraminifera online for free Send us your images, samples and specimens to enlarge our coverage Link to comment Share on other sites More sharing options...
The QCC Posted March 21, 2017 Author Share Posted March 21, 2017 1 hour ago, Foram-Mike said: www.foraminifera.eu/querydb.php?genus=Dentalina&aktion=suche Thank you for the information. You are correct, just knowing it is faram is enough for me. My hobby is making thin sections and printing the photographs. Finding interesting things in the thin sections is a bonus. This photo is of the sandy fill in a Mosasaur tooth. It is quite colourful and made a nice print. Link to comment Share on other sites More sharing options...
The QCC Posted March 21, 2017 Author Share Posted March 21, 2017 Foram-Mike: I measured the faram and it is >1mm 1 Link to comment Share on other sites More sharing options...
Foram-Mike Posted March 22, 2017 Share Posted March 22, 2017 Ok this fits even better in the common size range Faram => Foram or Foraminifera Foram-Mike, Owner of www.foraminifera.eu So far we show 12000+ images of foraminifera online for free Send us your images, samples and specimens to enlarge our coverage Link to comment Share on other sites More sharing options...
mikecable Posted April 16, 2017 Share Posted April 16, 2017 A_Colour_Atlas_of_Carbonate_Sediments_and_Rocks_Under_the_Microscope_by_A._E._Ad I was able to download for free without registering. 1 Link to comment Share on other sites More sharing options...
The QCC Posted April 16, 2017 Author Share Posted April 16, 2017 Thank you. I downloaded a PDF version. It looks quite helpful. Thanks Link to comment Share on other sites More sharing options...
Missourian Posted May 20, 2017 Share Posted May 20, 2017 You might find this book useful: http://www.springer.com/us/book/9783642651137 Introductory Petrography of Fossils Horowitz, Alan S., Potter, Paul E. My copy was retired from a library: Many microfossils are represented (forams here): And the microstructure of macrofossils (pelecypods here): And microscopic views of fossiliferous rocks (grainstone here): 1 Context is critical. Link to comment Share on other sites More sharing options...
The QCC Posted May 20, 2017 Author Share Posted May 20, 2017 Thank you. I ordered a used copy from Amazon.ca. Substantially less expensive than a new copy. Thanks Link to comment Share on other sites More sharing options...
piranha Posted May 21, 2017 Share Posted May 21, 2017 Cancel your order. I have a pdf. Please send me a PM with your email address and I'll be happy to send it. Link to comment Share on other sites More sharing options...
doushantuo Posted May 21, 2017 Share Posted May 21, 2017 I think i have good microfossil literature. Just let me know. Light microscopy,SEM/TEM,Nomarksi,elemental mapping,the works. Dinoflagellates,Radiolaria,forams,conodonts,ostracods,palynology,ichthyoliths,statoliths,etc Btw,most,if not al D(eep)S(ea)D(rilling)P(roject) volumes are freely available online. ODP ones also ,of course Invaluable source for technical information regarding microfossils Link to comment Share on other sites More sharing options...
The QCC Posted May 21, 2017 Author Share Posted May 21, 2017 2 hours ago, doushantuo said: Light microscopy Hello: I would be interested in anything related to Light Microscopy. My primary interest is in polarized light microphotography. I make my own thin section slides and try to identify interesting shapes that may be fossils. Link to comment Share on other sites More sharing options...
doushantuo Posted May 21, 2017 Share Posted May 21, 2017 'kay. Mind,you the literature on microfossils is not rife with light microscopy,not since the 60's BTW,does the term microfacies ring a bell? Link to comment Share on other sites More sharing options...
The QCC Posted May 21, 2017 Author Share Posted May 21, 2017 4 minutes ago, doushantuo said: microfacies I have not come across the term "microfacies " in my reading about microphotography to date. A dictionary look-up "The composition, features, or appearance of a rock or mineral in thin section under the microscope." would describe what I have been doing for some time. Link to comment Share on other sites More sharing options...
doushantuo Posted May 21, 2017 Share Posted May 21, 2017 this the kind of thing?? Sphaeroidinella Dehiscens light microscopy,1971,might be taxonomically revised since then Link to comment Share on other sites More sharing options...
Missourian Posted May 21, 2017 Share Posted May 21, 2017 Speaking of microfacies, here is a tremendous reference: https://www.amazon.com/Microfacies-Carbonate-Rocks-Interpretation-Application/dp/364203795X Context is critical. Link to comment Share on other sites More sharing options...
The QCC Posted May 21, 2017 Author Share Posted May 21, 2017 Quote Quote This is what I do with rocks and fossil bits. A thin section of a sea Urchin viewed through darkfield polarized light. Thin sections of a small black rock I picked up. Link to comment Share on other sites More sharing options...
piranha Posted May 21, 2017 Share Posted May 21, 2017 Check your email for another excellent textbook Link to comment Share on other sites More sharing options...
The QCC Posted May 21, 2017 Author Share Posted May 21, 2017 Got it! A quick look at the photos and I will have to re-evaluate some of my slides. Some look quite similar to the photos in the book Thank you. Link to comment Share on other sites More sharing options...
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