Abyssal plain

High school (ages 12+)
Geography

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Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/abyssal-plain

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. How big is Abyssal plain?Approximately 53% of the Earth's total surface area
2. How deep is Abyssal plain?3,000 to 6,000 meters (9,800 to 19,700 feet), with some extending deeper
3. What is the dominant sediment types?Pelagic clays and biogenic oozes (calcareous and siliceous)
4. What is the geological formation mechanism?Long-term accumulation of fine-grained sediments burying underlying topography

Pelagic Sediments: Fine-grained deposits originating from the water column, primarily skeletal remains of plankton and fine rock particles.
Turbidity Currents: Underwater currents of sediment-laden water that flow down slopes, responsible for depositing turbidite layers.
Carbonate Compensation Depth (CCD): The depth in the ocean below which calcium carbonate sediments dissolve faster than they accumulate.
Benthic Zone: The ecological region at the lowest level of a body of water, including the sediment surface and sub-surface layers.