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: [ Ссылка ]
Investigations in Historical Geology: Lab Manual by Deborah Caskey and Vicki Harder (2014) - Lab 8: [ 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 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:
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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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