The Great Canadian shield
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The rock of the great Canadian Shield was formed two billion years ago. Now its many minerals—gold, nickel, copper, mica, feldspar, iron and magnesium—are mined as essential ingredients in Canadian industry.
Credits
- Directed by
- Laurence Hyde
Sources
- 16mm Filmography (legacy record) — title, description, catalog record
- Wikidata · Q123306619 ↗ — year, creator, country, credits
Original permalink · Record added 2026-01-23 04:13:03