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Showing results for tags 'boring billion'.
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Mid-Proterozoic day length stalled at 19 hours by tidal resonance.
Oxytropidoceras posted a topic in Geology
Earth’s “Boring Billion” – Study Unveils 19-Hour Days in Earth’s Deep Past Chinese Academy of Sciences, SciTechDaily, JUne 19, 2023 The open access paper is: Mitchell, R.N. and Kirscher, U., 2023. Mid-Proterozoic day length stalled by tidal resonance. Nature Geoscience, pp.1-3. https://doi.org/10.1038/s41561-023-01202-6 Yours, Paul H.-
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Supermountains might have affected the evolution of life on Earth
Oxytropidoceras posted a topic in Fossil News
Supermountains controlled the evolution of life on Earth Australian National University, February 2, 2022 EurekaAlert posting Scientists discover lost range of 'supermountains' three times longer than the Himalayas By Brandon Specktor, Live Science, February 4, 2022 The destruction of these ancient mountains may have fueled Earth's biggest evolution booms. Selected papers: Zhu, Z., Campbell, I.H., Allen, C.M., Brocks, J.J. and Chen, B., 2022. The temporal distribution of Earth's supermountains and their potential link to the rise of atmospheric oxygen and biological evolution. Earth and Planetary Science Letters, 580, p.117391. Squire, R.J., Campbell, I.H., Allen, C.M. and Wilson, C.J., 2006. Did the Transgondwanan Supermountain trigger the explosive radiation of animals on Earth?. Earth and Planetary Science Letters, 250(1-2), pp.116-133. Yorus, Paul H.- 2 replies
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Earth's mountains disappeared for a billion years, and then life stopped evolving
Oxytropidoceras posted a topic in Fossil News
Earth's mountains disappeared for a billion years, and then life stopped evolving A dead supercontinent may be to blame By Brandon Specktor, Live Science Tang, M., Chu, X., Hao, J. and Shen, B., 2021. Orogenic quiescence in Earth’s middle age. Science, 371(6530), pp.728-731. Yorus, Paul H.-
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Articles: Scientists discover the world's oldest colors “Scientists have discovered the oldest colors in the geological record, 1.1-billion-year-old bright pink pigments extracted from rocks deep beneath the Sahara desert in Africa.” Scientists discover world's oldest colour – bright pink ”Pigments found in 1.1bn-year-old rocks beneath the Sahara desert shed light on ‘major puzzle’ about early life” Scientists Discover The Oldest Color On Earth “Scientists from Australia, the United States and Japan have discovered the world’s oldest color: bright pink” Paper: 1.1-billion-year-old porphyrins establish a marine ecosystem dominated by bacterial primary producers Dr Amber Jarrett and Associate Professor Jochen Brocks at the Australian National University. Photograph: Stuart Hay/ANU Biogeochemistry Lab Manager Janet Hope from the ANU Research School of Earth Sciences holds a vial of pink colored porphyrins representing the oldest intact pigments in the world. Credit: The Australian National University
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Re-Os Dates Indicate that Photosynthesis Started about 1.25 Ga
Oxytropidoceras posted a topic in Fossil News
World’s oldest algae fossils date back 1 billion years, says new research, Intelligencer, December 24, 2017 https://www.mcgill.ca/channels/channels/news/origins-photosynthesis-plants-dated-125-billion-years-ago-283492 https://www.lintelligencer.com/worlds-oldest-algae-fossils-date-back-1-billion-years-says-new-research-419-2017/ First photosynthesis took place 1.25 billion years ago: Study Economic times, Dec 24, 2017 https://economictimes.indiatimes.com/news/science/first-photosynthesis-took-place-1-25-billion-years-ago-study/articleshow/62231708.cms The paper is; Gibson, T.M., Shih, P.M., Cumming, V.M., Fischer, W.W., Crockford, P.W., Hodgskiss, M.S., Wörndle, S., Creaser, R.A., Rainbird, R.H., Skulski, T.M. and Halverson, G.P., 2017. Precise age of Bangiomorpha pubescens dates the origin of eukaryotic photosynthesis. Geology. https://pubs.geoscienceworld.org/gsa/geology/article-abstract/524864/Precise-age-of-Bangiomorpha-pubescens-dates-the Yours, Paul H.- 1 reply
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- algae
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