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Showing results for tags 'glaciation'.
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A short post today, just wanted to upload this interesting Rhizocorallium (?) I found on my most recent fossil hunting trip! It’s still the dead of winter here in Saskatoon, but we had a warm snap recently and I was able to hike out to a local glacial silt exposure and found it. Hoping to return to this site soon and hopefully find more!
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- rhizocorallium
- ichnology
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benthic phototrophic macroalgae indicate taht 'Snowball Earth' might have been 'Slushball Earth'
Oxytropidoceras posted a topic in Fossil News
'Snowball Earth' might have been slushball by University of Cincinnati, April 9, 2023 The open access paper is: Song, H., An, Z., Ye, Q., Stüeken, E.E., Li, J., Hu, J., Algeo, T.J., Tian, L., Chu, D., Song, H. and Xiao, S., 2023. Mid-latitudinal habitable environment for marine eukaryotes during the waning stage of the Marinoan snowball glaciation. Nature Communications, 14(1), p.1564. Researchgate PDF Yoru, Paul H.- 1 reply
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- marinoan
- glaciation
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Late Ordovician mass extinction - volcanism and warming or cooling and glaciation?
Oxytropidoceras posted a topic in Fossil News
There is a series of open access papers about what caused the Late Ordovician mass extinction. They are: Bond, D.P. and Grasby, S.E., 2020. Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation. Geology. https://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G47377.1/586486/Late-Ordovician-mass-extinction-caused-by Mitchell, C. E., and Melchin, M.J., 2020. COMMENT: Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation. Geology https://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G47946C.1/587311/COMMENT-Late-Ordovician-mass-extinction-caused-by Bond, D.P. and Grasby, S.E., 2020. REPLY: Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation. Geology. https://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G47984Y.1/587312/REPLY-Late-Ordovician-mass-extinction-caused-by Wang, G., Zhan, R. and Percival, I.G., 2019. The end-Ordovician mass extinction: A single-pulse event?. Earth-Science Reviews, 192, pp.15-33. https://www.sciencedirect.com/science/article/pii/S0012825218305099 https://www.researchgate.net/publication/331275476_The_end-Ordovician_mass_extinction_A_single-pulse_event https://www.researchgate.net/profile/Gx_Wang2 Yours, Paul H.-
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- glaciation
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Neoproterozoic glacial origin of the Great Unconformity
Oxytropidoceras posted a topic in Fossil News
Researchers suggest missing crust layer can be blamed on 'Snowball Earth' January 3, 2019 by Bob Yirka, Phys.org https://phys.org/news/2019-01-crust-layer-blamed-snowball-earth.html Around the world, miles of rock are missing. Could ‘Snowball Earth’ be the culprit? by Julian Rosen, Los Angeles Times, January 3, 2019 https://www.latimes.com/science/sciencenow/la-sci-sn-snowball-earth-geology-20190103-story.html the paper is: C. Brenhin Keller et al. Neoproterozoic glacial origin of the Great Unconformity, Proceedings of the National Academy of Sciences (2019). DOI: 10.1073/pnas.1804350116 https://www.pnas.org/content/early/2018/12/26/1804350116 Yours, Paul H.-
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- snowball earth
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