This video is over absolute, or radioactive, dating of rocks, specifically covering: isotope basics, types of radioactive decay, half lives and calculating age using half lives, and the types of rocks that can be accurately dating using these methods.

References: Investigations in Historical Geology: Lab Manual by Deborah Caskey and Vicki Harder (2014) - second half of Lab 2
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Earth System History: [ 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!)

Studying for an exam? Schedule Tutoring with me: [ Ссылка ]

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 ]

0:00 General concept of absolute dating
0:56 Relative vs. absolute dating
1:43 Radioactive isotope basics
2:40 Radioactive decay of isotopes
3:18 Are all isotopes radioactive?
4:16 Alpha decay
5:38 Beta decay
6:27 Beta capture
7:05 Alpha decay illustration
7:39 Beta decay illustration
7:57 Beta capture illustration
8:12 Half lives
10:17 What types of rocks can we radioactively date?
11:19 Radiometric dating process
11:43 Radiometric dating practice problems!

Image sources:
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