Ever wonder how we use isotopes in geology? Ever wonder about the difference between stable and radiogenic isotopes? Here, I discuss stable isotope fractionation as well as stable isotope applications in igneous petrology (for temperature reconstructions and as isotopes tracers), then we switch to radiogenic isotopes, in which I go over the applications of potassium argon dating, argon argon dating, and uranium lead dating for geochronology, then I briefly cover some other dating methods as well as the fan favorite, carbon dating, and why C dating is not applicable to igneous petrology. Lastly, we touch on isotope petrogenesis, the study of magma sources, and the common isotope pairs we use for this (strontium, hafnium, neodymium, and lead), with an example of how we use Sr isotopes to determine magma source and then how the application of Hf isotopes and Nd isotopes differ to that of Sr isotopes.
References: Essentials of Igneous Petrology by Ronald and Carol Frost: [ Ссылка ]
Earth Materials by Cornelis Klein and Anthony Philpotts: [ Ссылка ]
GEO GIRL Website: [ Ссылка ] (visit my website to see all my courses, shop merch, learn more about me, and donate to support the channel if you'd like!)
0:00 isotope introduction
2:16 stable vs radioactive isotopes
3:57 stable isotope fractionation
5:57 kinetic vs equilibrium isotope fractionation
8:52 geothermometry & isotope tracers
11:00 radiogenic isotope geochemistry
13:12 K-Ar dating
14:21 Ar-Ar dating
15:42 U-Pb dating
17:35 Other U dating methods
19:39 carbon dating
20:46 what is isotope petrogenesis?
22:38 Sr isotopes to determine magma sources
24:12 Hf & Nd isotopes to determine magma sources
25:18 Upcoming videos!
Hey there, Earth enthusiast! Check my favorite Earth-friendly products:
Bamboo toilet paper: [ Ссылка ]
Bamboo paper towels: [ Ссылка ]
Compostable tableware: [ Ссылка ]
Compostable trash bags: [ Ссылка ]
Bamboo cutlery + straw! : [ Ссылка ]
Eco-Friendly Tote (great for grocery shopping!): [ Ссылка ]
Reusable straws + cleaning brushes (my fav!): [ Ссылка ]
Eco-friendly laundry detergent: [ Ссылка ]
Directly offset your carbon footprint with Wren: [ Ссылка ]
(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: [ Ссылка ]
Brief history of Earth by A. Knoll: [ Ссылка ]
Life on young planet by A. Knoll: [ Ссылка ]
Some assembly required by N. Shubin: [ Ссылка ]
Your inner fish by N. Shubin: [ Ссылка ]
Oxygen by N. Lane: [ Ссылка ]
Alien Oceans by K. Hand: [ Ссылка ]
Life's Engines: [ Ссылка ]
Tools I use as a geologist/teacher/student:
Geology field notebook: [ Ссылка ]
Geology rock hammer: [ Ссылка ]
Geological compass: [ Ссылка ]
Geological hand lens: [ Ссылка ]
Camera: [ Ссылка ]
Carbon-neutral pencil bag: [ Ссылка ]
Carbon-neutral backpack: [ Ссылка ]
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!
