Hellow guys, Welcome to my website, and you are watching How We Know What Happened in Earth's Past, like Ancient Climate, Geology, & Extinctions | GEO GIRL. and this vIdeo is uploaded by GEO GIRL at 2023-07-09T08:30:05-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
| Name | How We Know What Happened in Earth's Past, like Ancient Climate, Geology, & Extinctions | GEO GIRL |
| Video Uploader | Video From GEO GIRL |
| Upload Date | This Video Uploaded At 09-07-2023 15:30:05 |
| Video Discription | We reconstruct Earth's ancient past using physical, chemical, and/or biological signatures preserved in rocks, called proxies. From such proxies, we are able to reconstruct ancient climate trends, like temperature, atmospheric composition, ocean chemistry, oxygen levels, carbon dioxide levels, mountain chain positions, elevations, plate tectonic events, volanic eruption events, earthquakes, wildfires, ocean anoxic events, impact events, glacial expansions and contractions, sea level rise and fall, etc. as well as biological events, like evolutionary and extinction events. In the many Earth history videos on my channel, I go over such events, but in this video, I go over what kind of proxies we use to reconstruct such ancient events and conditions! I know this video is long, so I broke it into sections, which cover physical proxies, chemical proxies, & biological proxies, respectively. I also included chapters listed below and on the timebar of the video for you to use if you'd like to skip to a specific section. Hope you enjoy! ;) References: Zachos et al., 2001- Trends, rhythms, and aberrations in global climate 65 Ma to present: https://doi.org/10.1126/science.1059412 McElwain & Punyasena, 2007- Mass extinction events and the plant fossil record: https://doi.org/10.1016/j.tree.2007.09.003 Falkowski et al., 2005- The rise of oxygen over the past 205 million years and the evolution of large placental mammals: https://doi.org/10.1126/science.1116047 Hayes, 2001- Fractionation of the isotopes of carbon and hydrogen in biosynthetic processes. Reviews in mineralogy and geochemistry: https://doi.org/10.2138/gsrmg.43.1.225 Delano, 2001- Redox history of the Earth's interior since ∼ 3900 Ma: Implications for prebiotic molecules: https://doi.org/10.1023/A:1011895600380 USGS Article: https://www.usgs.gov/programs/climate-research-and-development-program/science/paleoclimate-proxies#:~:text=Paleoclimate%20proxies%20are%20physical%2C%20chemical%20and%20biological%20materials,climate%20or%20environmental%20parameters%20in%20the%20modern%20world. 0:00 How we reconstruct Earth’s past 5:22 Why we study Earth’s past 7:17 How paleoclimate proxies work 9:09 Physical proxies 17:18 Chemical proxies 18:02 Stable isotope chemical proxies 20:53 Carbon isotope example 24:29 Oxygen isotope example 29:27 Sulfur isotope example 33:49 Trace element chemical proxies 38:01 Biochemical proxies (biomarkers) 40:23 Biological proxies (fossils) 41:07 Terrestrial biological proxies 42:48 Aquatic biological proxies 48:10 Honorable mention proxies GEO GIRL Website: https://www.geogirlscience.com/ (visit my website to see all my courses, shop merch, learn more about me, & donate to support the channel if you'd like!) 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://shrsl.com/3d0t2 (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 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! |
| Category | Science & Technology |
| Tags | geology | geology crash course | earth science |
