Is the ocean floor completely flat? No, of course it is not! List three physical features found on the ocean floor, and briefly describe what each looks like. First Feature: Second... Is the ocean floor completely flat? No, of course it is not! List three physical features found on the ocean floor, and briefly describe what each looks like. First Feature: Second Feature: Third feature: What type of rock is the seafloor (oceanic crust) made of? What is the approximate age of the oldest oceanic crust? What is the approximate age of the youngest oceanic crust? Generally, where is the oldest oceanic crust found? Generally, where is the youngest oceanic crust found? Generally, where are the thickest layers of marine sediment found? Generally, where are the thinnest layers of marine sediment found?
Understand the Problem
The question asks for information about the ocean floor, including specific features, types of rocks, their ages, and sediment layers. It implies a need for understanding geological terms and concepts related to oceanography.
Answer
Features: mid-ocean ridges, abyssal plains, trenches. Seafloor rock: basalt. Oldest crust: 200 million years. Youngest near ridges. Thickest sediment far from ridges.
Three physical features found on the ocean floor include mid-ocean ridges, abyssal plains, and ocean trenches. The seafloor is primarily made of basalt. The oldest oceanic crust is around 200 million years old, while the youngest is near the mid-ocean ridges. Oldest crust is found farthest from ridges, and youngest is at the ridges. Thickest marine sediments are far from ridges, and thinnest are near them.
Answer for screen readers
Three physical features found on the ocean floor include mid-ocean ridges, abyssal plains, and ocean trenches. The seafloor is primarily made of basalt. The oldest oceanic crust is around 200 million years old, while the youngest is near the mid-ocean ridges. Oldest crust is found farthest from ridges, and youngest is at the ridges. Thickest marine sediments are far from ridges, and thinnest are near them.
More Information
Mid-ocean ridges are underwater mountain ranges; abyssal plains are flat, deep sections; trenches are deep crevices. Basalt forms from volcanic activity at spreading centers.
Sources
- Ocean floor features - NOAA - noaa.gov
- Seafloor Features and Mapping the Seafloor | manoa.hawaii.edu - manoa.hawaii.edu
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