Precambrian Era
The Canadian Shield is known for its mineral ores. It contains a rich amount of mineral ores, such as gold, nickel, copper, and silver.
The Canadian Shield covers the following places: Sudbury, Ottawa, Iqaluit, Montreal,
What is the Canadian Shield known for?
Facts about the Precambrian Era
- The same rocks, ice sheets, and glaciers that were in the Precambrian period can still be found in certain areas of the world.
Major Geological Events
Water vapor from the atmosphere
formed oceans.
May have created life with mineral-rich
under-water volcanoes
Crust cooled down, forming a solid crust
Main topic
What happened in the Precambrian Era?
Oceans were created from the water vapour in the atmosphere.
Created a crust around the Earth
Planet cooled down from the original molten state
The Precambrian time was the earliest time period of the history of Earth.
Biology
Living things
Cells
Eukaryotic cells
Lead to the creation of plant and animal cells
Lived in water
Mollusks
Jellyfish
protozoa
Lived on land
Worms
Arthropods
Bacteria
Blue green algae
Bacteria began using photosynthesis
in order to gain energy
Fungi
Chytrid fungus
When it Began?
4.6 billion years ago
