1. Identify the two major regions of the ocean floor.

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Presentation transcript:

1. Identify the two major regions of the ocean floor. Objectives: 1. Identify the two major regions of the ocean floor. 2. Classify subdivisions and features of the two major regions of the ocean floor. 13.2 The Ocean Floor

Studying the Ocean Floor Seeing by Sonar: Scientists calculate the depth by multiplying half the travel time by the speed of sound in water (about 1,500 m/s). Oceanography via Satellite Studying the Floor with Geostat Studying the Ocean Floor

Geostat has been used to measure slight changes in the height of the ocean’s surface. Different underwater features, such as mountains and trenches, affect the height of the water above them.

Revealing the Ocean Floor 1. Continental margin – made of continental crust _____________ 2. Deep ocean basin – made of oceanic crust ______________ Revealing the Ocean Floor

Ocean Floor Subdivisions and Features Continental margin contains: 1. Continental shelf – 2. Continental slope – 3. Continental rise – Ocean Floor Subdivisions and Features

Ocean Floor Subdivisions and Features Deep ocean basin contains: Abyssal plain – Mid-ocean ridges- Rift valleys- Trenches- Ocean Floor Subdivisions and Features

Technology Connection (enrichment)