Shield of plenty. (Film)
Contributors: MacKay, Ken.; Wilson, J        Tuzo.; Ontario Educational Communications Authority.; Toronto, Ont. University. Erindale College.
Series: Planet of man
Publisher: OECA
Published: 1975
Place of publication: [Toronto]
Language: eng
Number of pages: 30
Subjects: Geology, Stratigraphic -- Precambrian.
Description: The Precambrian period stretching from the beginnings of the solar system, ends when ancient mountains had been worn almost to a plain before the first arrival of plants and animals. Relatively little is known about the formation of rock during this period (4 1/2 billion to 600 million years ago). Program explores these extensive shields of Precambrian mountain remnants, and examines their variety of mineral resources.-
Notes: BPN : 115408.-

Also available in Videocassette 001366.-

Expiry date: Feb. 20, 1980.-

producer/director, Ken Mackay; narrator, Ted Follows; scenario, Neil McLean; series science editor, Tuzo Wilson.-

Undergrad general

Also available on video.

Earthavl