Anatomy of a Continent - Lesson 20 - Part 1 of 6

Planet of Man Series -- Shield of Plenty
Intro - Dr. David Pearson
Starring; Tuzo Wilson -- renowned geophysicist
Anatomy of a Continent-Lesson 20-Part 1 of 6
Planet of Man -- Shield of Plenty
•Typical topography of Northern Ontario and northern Canada
•Canada's wealth is found in the shield
•Precambrian characteristic -- red, granitic & contorted
•Oldest rock in the world - precambrian
•Cambrian name derived from rocks found in Wales that are .5 billion years old
•Grenville rocks formed about 1 billion years ago
•Mining footage from the 1960's -- showing headframes, blasting in open pits and underground
•17% of earth is made of Precambrian shield; Canadian Shield, South American Shield, Indian Shield, Baltic, African, Australian
•Shields are hard to live in and difficult to penetrate
•Precambrian rocks found at bottom of canyons - Grand Canyon
•Precambrian rocks found at base of mountains -- New Mexico
•Geological time -- Precambrian time -- scale showing time
•20th century idea of age of the earth-- 1917; earth age 1 billion, 1947; 3 billion years old today 4.5 billion years
•Precambrian rocks still being studied and researched.

Category:

Science & Technology

Tags:

• Part
• Canada
• geology
• Canadian
• shield
• plate
• tectonics
• age
• of
• rock
• radiometric
• dating
• planet
• man
• Northern
• Ontario

[mineguy101]

Thanks for commenting! Never realized there was a comment!

This 22 episode series was called Understanding the Earth made in 1976 by TV Ontario (PBS of Canadian television). The series was part of a extension course at Laurentian University in Sudbury, Ontario. I believe from 1976 to 1986.

First part was the Planet of Man series hosted by Tuzo Wilson.

The series host was Dr. David Pearson, English trained, Canadian geologist and lecturer residing in Sudbury, Ontario.

[compelledtopuke]

awesome lesson

But Seriously . Get a hair cut.

[NanaNarcotic]

Really good, enjoyed it.

[shitzulovey]

Wow, I had heard years ago that the oldest rock in the world was in Canada, so I did a search and found this, thank you for posting,facinating info.  moo

[eckosters]

Dear Mineguy

this is fascinating footage. I don't know who the presentor is, but to see Tuzo Wilson in this video is just fabulous. Wouldn't you want to make this footage available to the greater Canadian geoscience community, especially in this International Year of Planet Earth? Please refer to the website of the Canadian Federation of Earth Sciences for further information