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Showing results for tags 'anoxia'.
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Calcium phosphate preservation of Posidonia Shale (Germany) fossils
Oxytropidoceras posted a topic in Fossil News
‘Golden’ (phosphate) fossils reveal new secrets; provide clues to Jurassic extinction event by: Eric Henrikson, KXAN News, Nexstar Media Inc., Texas, June 14, 2023 The paywalled paper is: Muscente, A.D., Vinnes, O., Sinha, S., Schiffbauer, J.D., Maxwell, E.E., Schweigert, G. and Martindale, R.C., 2023. What role does anoxia play in exceptional fossil preservation? Lessons from the taphonomy of the Posidonia Shale (Germany). Earth-Science Reviews, p.104323. Yours, Paul H.-
- phosphatization
- lagerstätten
- (and 8 more)
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Scientists Uncover New Information Regarding Toarcian (Early Jurassic) Mass extinction
Oxytropidoceras posted a topic in Fossil News
Scientists Uncover New Information Regarding an Ancient Mass Extinction Event Florida state University, SciTechDailey, December 22, 2022 The open access paper is: Them, T.R., Owens, J.D., Marroquín, S.M., Caruthers, A.H., Alexandre, J.T. and Gill, B.C., 2022. Reduced Marine Molybdenum Inventory Related to Enhanced Organic Carbon Burial and an Expansion of Reducing Environments in the Toarcian (Early Jurassic) Oceans. AGU Advances, 3(6), p.e2022AV000671. open access Yours, Paul H.-
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- mass extinction
- jurassic
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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
- late ordovician mass extinction
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