geographic features of the earth!
TRANSCRIPT
Geographic Features of the Earth!
Social Studies 3C
Continental Relief
• Relief refers to all the different forms on Earth´s surface. The different types of continental (surface) relief are plains, plateaus, mountains, and depressions.
Peninsula
• Area of land surrounded by water on all sides but one (the isthmus) which joins it to the mainland.
The Florida Peninsula
• Situated between the Gulf of Mexico, the Atlantic Ocean, and the Straits of Florida
Mountain
• Elevation of the terrain with steep slopes and an altitude of greater than 600 m.
The Himalaya Mountains
• Crosses several countries in Asia:– India, Nepal, Tibet,
Bhutan, Pakistan
• World’s highest mountain system
Plain
• Flat or gently rolling extension of land at an altitude of less than 200 m.
The Great Plains
• Located in the United States and covers 10 American States and part of Canada
Plateau
• A raised plain at an altitude of over 200 m.
The Tibetan Plateau
• Located in Asia• The largest and highest
plateau in the world• Nicknamed the “roof of
the world”
Depression
• Sunken area of the Earth´s crust
Coastal Relief
• Capes, gulfs, peninsulas, estuaries, fjords, and deltas.
Cape
• Part of the coast which juts out into the sea.
Cape of Good Hope
• Located in Cape Peninsula, South Africa
• 1488: Bartolomeu Dias rounds the Cape
Gulf
• Entry of the sea into the coast.
Gulf of Mexico
• Connected to the Atlantic Ocean
• 10th largest body of water in the world
Delta
• Coastal area formed by the accumulation of sediments of a river at its mouth.
Mississippi River Delta
• Mississippi River is the 4th longest and 10th largest river in the world
• Delta enters the Gulf of Mexico
Island
• Mass of land surrounded by water.
The Canaries!
• Located in front of the northwest coast of Africa
Estuary
• Flooded valley formed by the entry of the sea into the final section of a river valley.
Gulf of St. Lawrence Estuary
• World’s largest estuary• Rivers that flow into it:
– St. Lawrence, Miramichi, Natashquan, Restigouche, Margaree, Humber
• Flows into the Atlantic Ocean
Submarine Relief
• AKA underwater relief. Continental platforms, continental shelves, and abyssal plains, across which mid-ocean ridges and marine trenches can be found.
Mid-Ocean Ridge
• Underwater mountain range
Abyssal Plain
• Extensive, flat sea bottom at a depth of 4,000 to 5,000 m.
Marine Trench
• Long, narrow underwater depression.
Continental Trench
• Long, narrow surface depression above water.
Continental Platform
• AKA continental slope. Gentle slope at the edge of the continent with a depth of 200 m.