What actually killed the dinosaurs 66 million years ago? In this video, we go through the series of events that followed the asteroid impact, the effect these events had on marine and terrestrial life, the recovery of life, and a potenital missing piece of the puzzle that might help us explain the dinosaurs demise. Be sure to check out part 2 here: • Was it an Asteroid or Volcanos that K... after watching this one!
0:00 Impact & Timing of KPg Extinction
2:57 Evidence of Asteroid Impact
4:09 How an Asteroid Killed the Dinos
4:37 1. The Broil
6:27 Blocked Sunlight & Photosynthesis
8:58 2. Impact Winter
9:23 3. Toxic Chemicals
9:42 4. Global Warming
10:48 How an Asteroid Caused Warming
11:23 How Warming Affected Life
12:43 5. Acid Rain
13:40 6. Ocean Acidification
14:42 Recovery of Life after KPg
15:39 Missing link?
References:
Sinnesael et al., 2024: Deep marine records of Deccan Trap volcanism before the Cretaceous–Paleogene (K–Pg) mass extinction: doi.org/10.1130/B37446.1
Earth System History: amzn.to/3v1Iy0G
Brussatte, 2022- www.scientificamerican.com/article/how-mammals-con…
Sakamoto et al. 2016- doi.org/10.1038/s41467-021-23754-0
Garcia-Giron et al. 2022- doi.org/10.1126/sciadv.add5040
Explore geology deeper with CampGeo – podcast-like conversation with visuals that bring geological concepts to life! Check it out here: campcourses.app.link/p5q0W0bxwMb
GEO GIRL Website: 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!)
Non-textbook books I recommend:
Oxygen by D. Canfield: amzn.to/3gffbCL
Brief history of Earth by A. Knoll: amzn.to/3w3hC1I
Life on young planet by A. Knoll: amzn.to/2RBMpny
Some assembly required by N. Shubin: amzn.to/3w1Ezm2
Your inner fish by N. Shubin: amzn.to/3cpw3Wb
Oxygen by N. Lane: amzn.to/3z4FgwZ
Alien Oceans by K. Hand: amzn.to/3clMx1l
Life's Engines: amzn.to/3w1Nhke
Tools I use as a geologist/teacher/student:
Geology field notebook: amzn.to/3lb6dJf
Geology rock hammer: amzn.to/3DZw8MA
Geological compass: amzn.to/3hfbdLu
Geological hand lens: amzn.to/3jXysM5
Camera: amzn.to/3l6fGRT
Carbon-neutral pencil bag: shrsl.com/3cvjv
Carbon-neutral backpack: 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!
GEO GIRL