Geological History and Formation of the Grand Canyon - A 2 Billion Year Journey

Embark on a 19-minute geological journey exploring the formation and evolution of the Grand Canyon, spanning approximately 2 billion years of Earth's history. Learn about the ancient Nuna supercontinent from over 1.7 billion years ago, the formation of Rodinia and Snowball Earth period, and the various geological processes that shaped the canyon's distinctive layers through changing sea levels, warm shallow seas, and desert environments. Discover the mysterious Great Unconformity representing over a billion missing years in the geological record, examine multiple hypotheses about how and when the canyon was carved, and uncover fascinating facts about this natural wonder. Through detailed timestamps and comprehensive coverage of geological periods, gain a deep understanding of the rock formations, geological processes, and the incredible timeline that created one of Earth's most spectacular landscapes.

Syllabus

0:00 Grand Canyon Geology Intro
0:58 Over 1.7 billion yrs ago Nuna supercontinent
2:05 1.2 to 0.8 billion yrs ago Rodinia & Snowball Earth
3:20 540 to 360 million yrs ago changing sea level
4:10 360 to 320 million yrs ago warm, shallow sea
6:32 320 to 280 million yrs ago changing sea level
7:15 300 to 250 million yrs ago desert dunes
8:35 Final Rock Deposition Timeline
8:56 The Great Unconformity over 1 billion yrs missing!
11:21 How & When the Canyon was cut
12:56 Fun Facts about the Grand Canyon!
17:05 Outtakes ;