Dawson Sensenig Posted May 8, 2023 Share Posted May 8, 2023 I have been working on my undergraduate thesis for a little town called Cow Head in Newfoundland, Canada. This area is a part of the Cow Head group, specifically the Stearing Island beds, making it Lower Ordovician. I'm asking about the little circular guy in the top right. If anyone has any idea what it may be (if it even is a fossil) that would be great, any help would be greatly appreciated! I would love to credit you in our paper if you'd like! I attached images of the thin section in both plane polarized and cross polarized light. Thank you! Link to comment Share on other sites More sharing options...
DPS Ammonite Posted May 8, 2023 Share Posted May 8, 2023 Consider ooids; I think I see more than one. https://en.m.wikipedia.org/wiki/Oolite 3 1 My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
Dawson Sensenig Posted May 9, 2023 Author Share Posted May 9, 2023 (edited) 3 hours ago, DPS Ammonite said: Consider ooids; I think I see more than one. So I have considered that and even mentioned it to my advisors (one being a sed/strat prof) and he doesn't think that's the case. I on the other hand, think it may be an ooid, but my whole team is convinced otherwise! Thanks for taking the time to respond and validating my theory! Edited May 9, 2023 by Dawson Sensenig Link to comment Share on other sites More sharing options...
doushantuo Posted May 9, 2023 Share Posted May 9, 2023 I take it you have read 1 1 Link to comment Share on other sites More sharing options...
Dawson Sensenig Posted May 9, 2023 Author Share Posted May 9, 2023 4 hours ago, doushantuo said: I take it you have read Probably not as in depth as I needed to! Link to comment Share on other sites More sharing options...
doushantuo Posted May 9, 2023 Share Posted May 9, 2023 (edited) DPS ammonite might be on the right track,they might be chamositic ooids which can occur by way of upwelling as postulated for Laurentian paleomargins Edited May 9, 2023 by doushantuo 1 Link to comment Share on other sites More sharing options...
doushantuo Posted May 9, 2023 Share Posted May 9, 2023 (edited) you might like: Marine Ooid Sizes Record Phanerozoic Seawater Carbonate Chemistry Elizabeth J. Trower , Benjamin P. Smith , Ardiansyah I. Koeshidayatullah, and Jonathan L. Payne Geophysical Research Letters, 49, e2022GL100800. https://doi.org/10.1029/2022GL100800 trowGeocheGRLLetters - 2022 - Trower - Marine Ooid Sizes Record Phanerozoic Seawater Carbonate Chemistry.pdf Edited May 9, 2023 by doushantuo 1 Link to comment Share on other sites More sharing options...
Dawson Sensenig Posted May 11, 2023 Author Share Posted May 11, 2023 On 5/9/2023 at 7:26 AM, doushantuo said: DPS ammonite might be on the right track,they might be chamositic ooids which can occur by way of upwelling as postulated for Laurentian paleomargins Thanks for the input! I will mention it to my advisors again! Link to comment Share on other sites More sharing options...
doushantuo Posted May 11, 2023 Share Posted May 11, 2023 This might interest you,although I'm guessing you have already read it A bioflm and organomineralisationmodel for the growth and limiting size of ooids Murray T. Batchelor , Robert V. Burne , Bruce I. Henry Fei Li & Josef Paul 2.2 MB s41598-017-18908-4.pdf 1 Link to comment Share on other sites More sharing options...
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