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Showing results for tags 'cryogenian'.
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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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- carbon isotopes
- china
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Origin of metazoans as recorded by small carbonaceous fossils - 2022 open access review paper
Oxytropidoceras posted a topic in Fossil News
The comprehensive, open access review paper is: Slater, B.J. and Bohlin, M.S., 2022. Animal origins: The record from organic microfossils. Earth-Science Reviews, 232, no. 104107. open access review paper A related video. Possible sponge fossils in the Tonian of northwestern Canada, Elizabeth Turner, Laurentian University, Virtual Seminars in Precambrian Geology Turner's open access paper is: Turner, E.C., 2021. Possible poriferan body fossils in early Neoproterozoic microbial reefs. Nature, 596(7870), pp.87-91. Yours, Paul H.-
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- cambrian
- cryogenian
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Asteroid shower on the Earth-Moon system 800 million years ago
Oxytropidoceras posted a topic in Fossil News
Asteroid shower rained space rocks on Earth and the moon 800 million years ago By Charles Q. Choi, SpaceCom, July 21, 2020 Asteroid shower on the Earth-Moon system 800 million years ago revealed by lunar craters by Osaka University, PhysOrg, July 21, 2020 The open access paper is: Terada, K., Morota, T. & Kato, M. Asteroid shower on the Earth-Moon system immediately before the Cryogenian period revealed by KAGUYA. Nature Communications (2020). DOI: 10.1038/s41467-020-17115-6 Yours, Paul H.-
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- asteroid shower
- asteroids
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Ancient ‘Snowball Earth’ thawed out in a flash By Lucas Joel, Apr. 2, 2019 , 10:50 AM https://www.sciencemag.org/news/2019/04/ancient-snowball-earth-thawed-out-flash The paper is: Zhou, C., Huyskens, M.H., Lang, X., Xiao, S. and Yin, Q.Z., 2019. Calibrating the terminations of Cryogenian global glaciations. Geology, 47(3), pp.251-254. https://pubs.geoscienceworld.org/gsa/geology/article-abstract/47/3/251/568701/calibrating-the-terminations-of-cryogenian-global?redirectedFrom=fulltext An earlier article is: Ancient Earth froze over in a geologic instant By Lucas Joel Jun. 7, 2018 , 4:40 PM https://www.sciencemag.org/news/2018/06/ancient-earth-froze-over-geologic-instant The paper for this article is: MacLennan, S., Park, Y., Swanson-Hysell, N., Maloof, A., Schoene, B., Gebreslassie, M., Antilla, E., Tesema, T., Alene, M. and Haileab, B., 2018. The arc of the Snowball: U-Pb dates constrain the Islay anomaly and the initiation of the Sturtian glaciation. Geology, 46(6), pp.539-542. http://www.princeton.edu/geosciences/people/maloof/papers_pub/54Maloof.pdf Also, there is: Rooney, A.D., Strauss, J.V., Brandon, A.D. and Macdonald, F.A., 2015. A Cryogenian chronology: Two long-lasting synchronous Neoproterozoic glaciations. Geology, 43(5), pp.459-462. https://projects.iq.harvard.edu/files/fmacdonald/files/rooney_etal_geology_2015.pdf https://www.researchgate.net/profile/Alan_Rooney https://www.researchgate.net/publication/275523064_A_Cryogenian_chronology_Two_long-lasting_synchronous_Neoproterozoic_glaciations Yours, Paul H.
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- cryogenian
- geochronology
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Great Series of Lectures About Snowball Earth, Cryogenian, Including Its Paleobiology
Oxytropidoceras posted a topic in Fossil News
Belo are a great series of lectures (2016) that summarizes what is known and unknown about the Cryogenian. Earth Dynamics Research Group CCFS sponsored short course on Snowball Earth https://www.youtube.com/playlist?list=PLb5FFe99h_Lg_t5_67MG1OIKMjOPqFS4n Snowball Earth Lecture 1 - Snowball geology Earth Dynamics Research Group https://www.youtube.com/watch?v=RxFmcgjXtgI&t=0s&list=PLb5FFe99h_Lg_t5_67MG1OIKMjOPqFS4n&index=2 Snowball Earth Lecture 2 - Snowball climate dynamics Earth Dynamics Research Group https://www.youtube.com/watch?v=8ZTR-DaT-w0&t=0s&list=PLb5FFe99h_Lg_t5_67MG1OIKMjOPqFS4n&index=3 Snowball Earth Lecture 3 - Snowball geochemistry Earth Dynamics Research Group https://www.youtube.com/watch?v=AfC-YRLCKGU&t=0s&list=PLb5FFe99h_Lg_t5_67MG1OIKMjOPqFS4n&index=4 Snowball Earth Lectures 4&5 - Snowball geobiology & The origin of Laurentia Earth Dynamics Research Group https://www.youtube.com/watch?v=vrjmSVcIGo0&t=0s&list=PLb5FFe99h_Lg_t5_67MG1OIKMjOPqFS4n&index=5 Snowball Earth Lecture 6 - The Great Oxidation Event and a Siderian snowball earth Earth Dynamics Research Group https://www.youtube.com/watch?v=z2zXLswH02s&t=0s&list=PLb5FFe99h_Lg_t5_67MG1OIKMjOPqFS4n&index=6 Yours, Paul H.-
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- cryogenian
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