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Showing results for tags 'plate tectonics'.
Found 10 results
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Rarity of Plate Tectonics as an Explanation for Missing Extraterrestrial Civilizations
Oxytropidoceras posted a topic in Fossil News
The Key Role of Plate Tectonics for Accelerating the Evolution of Complex Life: Quest for the Missing Extraterrestrial Civilizations by Taras Gerya and Robert Stern, EGU 2023 #EGU23 PC3 Humans, hominoids and extraterrestials Time interval in video: 2:00 - 7:20 Basic premises: 1. Civilizations can only be expected on planets with oceans, continents, and plate tectonics 2. Such planets most likely form a very small (<<1 percent) of habitable planets with primitive life Co-Evolution of Life and Plate Tectonics #gsa2021 #utdgss Another lecture that touches on this is "Segmentation of subducting slabs and its implication for the onset of modern plate tectonics" by Dr. Taras Gerya." It will eventually be posted to "Virtual Seminar in Precambrian Geology" Yours, Paul H.- 1 reply
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- drake equation
- evolution of complex life
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Scientists Pin Down When Earth’s Crust Cracked, Then Came to Life New data indicating that Earth’s surface broke up about 3.2 billion years ago helps clarify how plate tectonics drove the evolution of complex life. The paper is: Tusch, J., Münker, C., Hasenstab, E., Jansen, M., Marien, C.S., Kurzweil, F., Van Kranendonk, M.J., Smithies, H., Maier, W. and Garbe-Schönberg, D., 2021. Convective isolation of Hadean mantle reservoirs through Archean time. Proceedings of the National Academy of Sciences, 118(2), no.e2012626118. Yours, Paul H.
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The emergence of plate tectonics and the Anna Karenina principle
Oxytropidoceras posted a topic in Geology
Marx, W. and Bornmann, L., 2013. The emergence of plate tectonics and the Kuhnian model of paradigm shift: a bibliometric case study based on the Anna Karenina principle. Scientometrics, 94(2), pp.595-614. link to Researchgate PDF of paper links to more papers by Lutz Bornmann link to citeseerx PDF of paper A related paper: Bornmann, L. and Marx, W., 2012. The Anna Karenina principle: A way of thinking about success in science. Journal of the American Society for Information Science and Technology, 63(10), pp.2037 link to Researchgate PDF of paper link to citeseerx PDF of paper Researchgate page for Lutz Bornmann Yours, Paul H. -
Geochemists solve mystery of Earth's vanishing crust by Florida State University, PhysOrg, June 26, 2020 https://phys.org/news/2020-06-geochemists-mystery-earth-crust.html The paper is: Yang, S., Humayun, M., and Salters, V. J. M., 2020, Elemental constraints on the amount of recycled crust in the generation of mid-oceanic ridge basalts (MORBs). Science Advances. Vol. 6, no. 26, eaba2923 https://advances.sciencemag.org/content/6/26/eaba2923 Yours, Paul H.
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The lost continent of Zealandia hides clues to the Ring of Fire's birth
Oxytropidoceras posted a topic in Geology
Expedition reveals the violent birth of Earth’s hidden continent Zealandia, forged in a ring of fire The conversation, February 6, 2020 https://theconversation.com/expedition-reveals-the-violent-birth-of-earths-hidden-continent-zealandia-forged-in-a-ring-of-fire-130860 The lost continent of Zealandia hides clues to the Ring of Fire's birth By Stephanie Pappas - Live Science https://www.livescience.com/zealandia-tied-to-ring-of-fire.html Related publications Sutherland, R., Dickens, G.R., Blum, P., Agnini, C., Alegret, L., Asatryan, G., Bhattacharya, J., Bordenave, A., Chang, L., Collot, J. and Cramwinckel, M.J., 2020. Continental-scale geographic change across Zealandia during Paleogene subduction initiation. Geology. Open access https://pubs.geoscienceworld.org/gsa/geology/article/581016/Continentalscale-geographic-change-across International Ocean Discovery Program Expedition 371 Preliminary Report http://publications.iodp.org/preliminary_report/371/371PR.PDF http://publications.iodp.org/preliminary_report/371/ Zealandia: Earth’s Hidden Continent, GSA Today Article, pp. 27–35 Web Page: https://www.geosociety.org/gsatoday/archive/27/3/article/GSATG321A.1.htm PDF: https://www.geosociety.org/gsatoday/archive/27/3/pdf/GSATG321A.1.pdf Yours, Paul H.-
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- international ocean discovery program
- new zealand
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Diamonds reveal how continents are stabilized, key to Earth's habitability by Carnegie Institution for Science, PhysOrg, April 25, 2019 https://phys.org/news/2019-04-diamonds-reveal-continents-stabilized-key.html https://www.livescience.com/65327-diamond-flaws-reveal-early-geology.html The paper is: Karen V. Smit, Steven B. Shirey, Erik H. Hauri, and Richard A. Stern 2019, Sulfur isotopes in diamonds reveal differences in continent construction. Science 26 Apr 2019: Vol. 364, Issue 6438, pp. 383-385 DOI: 10.1126/science.aaw9548 https://science.sciencemag.org/content/364/6438/383 Also, there is: Lithospheric Diamonds / Continental Mantle https://sites.google.com/carnegiescience.edu/stevenbshirey/publications/lithospheric-diamondcontinental-mantle https://sites.google.com/carnegiescience.edu/stevenbshirey/home Yours, Paul H.
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- continents
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Kirkland, James I., 2018, Utah’s Early Cretaceous Fossils Provide Critical Data on the Opening of the Atlantic Ocean Utah Geological Survey – Survey Notes vol. 50, no. 3, pp. 6-7. https://ugspub.nr.utah.gov/publications/survey_notes/snt50-3.pdf https://geology.utah.gov/map-pub/survey-notes/atlantic-fossils/ Kirkland, J.I., Suarez, M., Suarez, C. and Hunt-Foster, R., 2016. The Lower Cretaceous in east-central Utah —the Cedar Mountain Formation and its bounding strata. Geology of the Intermountain West, 3, pp. 101-228. https://www.utahgeology.org/giw/index.php/giw/article/view/v03-04-kirkland https://www.researchgate.net/publication/312190529_THE_LOWER_CRETACEOUS_IN_EAST-CENTRAL_UTAH_THE_CEDAR_MOUNTAIN_FORMATION_AND_ITS_BOUNDING_STRATA Yours, Paul H.
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- atlantic ocean
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Large meteorite impacts drove plate-tectonic processes on the early Earth, PhysOrg, September 26, 2017 https://phys.org/news/2017-09-large-meteorite-impacts-drove-plate-tectonic.html Did meteorites create the Earth’s tectonic plates? Cosmos, September 26, 2017 https://cosmosmagazine.com/geoscience/did-meteorites-create-the-earth-s-tectonic-plates The paper is: O’Neill, C., Marchi, S., Zhang, S., and Bottke, W., 2017. Impact-driven subduction on the Hadean Earth Nature Geoscience (2017) doi:10.1038/ngeo3029 Received 12 December 2016 Accepted 22 August 2017 Published online 25 September 2017 http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo3029.html?foxtrotcallback=true Another article is: Australian rocks suggest early Earth may not have had plate tectonics, Cosmos, September 28, 2017 https://cosmosmagazine.com/geoscience/tremors-shake-tectonic-plate-theory Plate Tectonics May Have Begun a Billion Years After Earth's Birth, Live Science, September 21, 2017 https://www.livescience.com/60478-plate-tectonics-gets-new-age.html The paper is: Johnson, T.E., Brown, M., Gardiner, N.J., Kirkland, C.L. and Smithies, R.H., 2017. Earth’s first stable continents did not form by subduction. Nature, 543(7644), pp.239-242. https://www.nature.com/nature/journal/v543/n7644/abs/nature21383.html Yours, Paul H.
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Earth probably began with a solid shell. New research suggests that plate tectonics began later in Earth's history, University of Maryland, February 27, 2017 https://cmns.umd.edu/news-events/features/3814 The paper is: Johnson, T.E., Brown, M., Gardiner, N.J., Kirkland, C.L. and Smithies, R.H., 2017. Earth’s first stable continents did not form by subduction. Nature. 543(7644):239–242 (09 March 2017) DOI: 10.1038/nature21383 http://www.nature.com/nature/journal/v543/n7644/full/nature21383.html Yours, Paul H.
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- plate tectonics
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Iturralde-Vinent, M. A., A. García-Casco, Y. Rojas-Agramonte, J. A. Proenza, J. B. Murphy, and R. J. Stern, 2916, The geology of Cuba: A brief overview and synthesis. GSA Today. Vol. 26, no. 10, pp. 4-10. http://www.geosociety.org/gsatoday/archive/26/10/article/i1052-5173-26-10-4.htm http://www.geosociety.org/gsatoday/archive/26/10/pdf/i1052-5173-26-10-4.pdf Travels in Geology: Journeying through Cuba's geology and Culture by Debra Hanneman, Earth Magazine, July, 2013 http://www.earthmagazine.org/article/travels-geology-journeying-through-cubas-geology-and-culture Yours, Paul H.
