Youtor
Precambrian Eon Geologic amp Biological Evolution 4 Billion Years Ago GEO GIRL
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=lxmQnCVHvrs
The major events of the Precambrian (from ~ 4.5 billion years ago to ~ 542 million years ago)- molten earth, continent / crust formation, early oceans, early life and biological evolution, atmospheric composition, rate of plate tectonics and other geologic processes, how and when life likely evolved, cyanobacteria / stromatolites, the great oxidation event, banded iron formations, how oxygen was toxic, the first ice ages, snowball (or slush-ball) earth, paleogeography, Ediacaran fauna / fossils, and more! • Reference: Earth System History: https://amzn.to/3mQmN3u • Investigations in Historical Geology: Lab Manual by Deborah Caskey and Vicki Harder (2014) - Lab 8: https://redshelf.com/book/51724/inves... • GEO GIRL Website: https://www.geogirlscience.com/ (visit my website to see all my courses, shop merch, learn more about me, and donate to support the channel if you'd like!) • Studying for an exam? Schedule Tutoring with me: https://GEOGIRLTutoring.as.me/ • Hey there, Earth enthusiast! Check my favorite Earth-friendly products: • Bamboo toilet paper: https://shrsl.com/3cvku • Bamboo paper towels: https://shrsl.com/3cvkw • Compostable tableware: https://shrsl.com/3cvkz • Compostable trash bags: https://shrsl.com/3cvl0 • Bamboo cutlery + straw! : https://shrsl.com/3cwfl • Eco-Friendly Tote (great for grocery shopping!): https://shrsl.com/3cwfp • Reusable straws + cleaning brushes (my fav!): https://shrsl.com/3cwft • Eco-friendly laundry detergent: https://shrsl.com/3cwgo • Directly offset your carbon footprint with Wren: https://www.wren.co/ • (Just click link, press get started, take the free C footprint quiz, then choose how much you want to reduce your footprint by donating to the C sequestration projects they're funding!) • Non-textbook books I recommend: • Oxygen by D. Canfield: https://amzn.to/3gffbCL • Brief history of Earth by A. Knoll: https://amzn.to/3w3hC1I • Life on young planet by A. Knoll: https://amzn.to/2RBMpny • Some assembly required by N. Shubin: https://amzn.to/3w1Ezm2 • Your inner fish by N. Shubin: https://amzn.to/3cpw3Wb • Oxygen by N. Lane: https://amzn.to/3z4FgwZ • Alien Oceans by K. Hand: https://amzn.to/3clMx1l • Life's Engines: https://amzn.to/3w1Nhke • Tools I use as a geologist/teacher/student: • Geology field notebook: https://amzn.to/3lb6dJf • Geology rock hammer: https://amzn.to/3DZw8MA • Geological compass: https://amzn.to/3hfbdLu • Geological hand lens: https://amzn.to/3jXysM5 • Camera: https://amzn.to/3l6fGRT • Carbon-neutral pencil bag: https://shrsl.com/3cvjv • Carbon-neutral backpack: https://shrsl.com/3cvkc • 0:00 What when was the Precambrian? • 1:48 Hadean Eon: Earth formation • 2:45 Layer formation during the Hadean • 3:42 Atmosphere formation outgassing during the Hadean • 4:31 Continental vs. oceanic crust formation during the Hadean • 6:09 Archean Eon: plate tectonic rate crustal accretion • 6:48 Laurentia formation during the Archean • 8:00 Did life evolve during the Archean? • 10:09 First photosynthesizing organisms (oxygen rise!) • 11:21 Banded iron formations (BIFs) • 12:00 Proterozoic Eon: Great Oxidation Event (GOE) • 12:31 GOE extinction (O2 was toxic!) • 13:58 Ediacaran fauna • 15:13 Cambrian explosion delay mystery? • 16:59 Precambrian supercontinents • 18:14 Snowball Earth (Proterozoic ice ages) • Image sources: • https://www.aca.unsw.edu.au/content/c... • https://lariedman.com/2016/12/01/a-fe... • http://nephicode.blogspot.com/2012/10... • https://astroblogger13.wordpress.com/... • https://thehistoryoftheearth.weebly.c... • https://en.wikipedia.org/wiki/Plate_r... • https://phys.org/news/2016-09-protein... • https://simple.wikipedia.org/wiki/Craton • https://www.planetary.org/space-image... • https://polarpedia.eu/en/banded-iron-... • http://www.35igc.org/Themes/21/The-Pr... • https://www.slideshare.net/keshavKuma... • http://www.grymvald.com/2015/08/world... • https://archaeologynewsnetwork.blogsp... • Disclaimer: Links included in this description might be affiliate links. If you purchase a product or service with the links that I provide I may receive a small commission, but there is no additional charge to you! Thank you for supporting my channel so I can continue to provide you with free content each week! And as always, let me know your topic suggestions in the comments down below!
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