Precambrian Era

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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

- This time period makes up 80% of Earth's geologic record

- 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