Podcast
Questions and Answers
What geological event led to the creation of the Cape Fold Belt Mountains?
What geological event led to the creation of the Cape Fold Belt Mountains?
Collisions between the continents that created Pangaea
How are the remaining Cape Fold Belt Mountains described in comparison to the Rockies?
How are the remaining Cape Fold Belt Mountains described in comparison to the Rockies?
The remnants of a once mighty mountain chain
What caused the formation of the Drakensberg Mountains?
What caused the formation of the Drakensberg Mountains?
Breakup of Pangaea 180 million years ago
What geological features mark the event of the Drakensberg Mountains' creation in Cape Town?
What geological features mark the event of the Drakensberg Mountains' creation in Cape Town?
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Where can a dolerite dyke be found at Kirstenbosch?
Where can a dolerite dyke be found at Kirstenbosch?
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What type of rocks underlie the CBD, Cape Flats, and the Swartland in Cape Town?
What type of rocks underlie the CBD, Cape Flats, and the Swartland in Cape Town?
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How did the Cape granite in Cape Town form?
How did the Cape granite in Cape Town form?
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What geological event caused the Malmesbury shales and Cape granite to be pushed up to the surface?
What geological event caused the Malmesbury shales and Cape granite to be pushed up to the surface?
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What type of rocks make up the bottom layers of the Cape Supergroup, forming Table Mountain?
What type of rocks make up the bottom layers of the Cape Supergroup, forming Table Mountain?
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Describe the process through which the sandstone layers of the Cape Supergroup were formed.
Describe the process through which the sandstone layers of the Cape Supergroup were formed.
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Study Notes
Cape Fold Belt Mountains Formation
- Formed due to a collision between the African and South American continents
- Mountains are eroded, much less dramatic than the Rockies
Drakensberg Mountains Formation
- Formed as a result of volcanic activity
- Dolerite dykes formed
- Drakensberg Escarpment in Cape Town
Cape Town Geology
- Kirstenbosch: Dolerite dyke can be found on the eastern side of the Garden
- CBD, Cape Flats, Swartland: Underlain by sedimentary rocks
- Cape Granite: Formed deep underground, cooled slowly allowing large crystals to form
- Malmesbury Shales and Cape Granite: Pushed up to surface by tectonic uplift
- Table Mountain: Formed from the bottom layers of the Cape Supergroup, which are made up of sandstone, shale, and mudstone
- Sandstone Layers: Formed from sand dunes deposited in a desert environment
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Description
Explore the ancient origins of Table Mountain and the geological events that shaped the landscape over millions of years. Learn about the Malmesbury shales and the movement of continents that led to the formation of this iconic landmark in Cape Town.
