Oceans Chap 5 Flashcard - Sediments

Front

What are biogenous sediments?

Back

Sediments that are made from the remains of living organisms, such as shells and skeletons.

Front

Where are neritic sediments typically found?

Back

On the continental shelf, which is the submerged part of the continent.

Front

What type of ooze is formed from foraminifera shells?

Back

Calcareous ooze, which is rich in calcium carbonate.

Front

What is not a valid method of classifying marine sediments?

Back

Alphabetical order.

Front

What natural phenomenon moves large volumes of bottom sediments?

Back

Turbidity currents, which are underwater flows of sediment-laden water.

Front

What are terrigenous sediments?

Back

Sediments that originate from land, typically transported to the ocean by rivers, wind, or glaciers.

Front

What are hydrogenous sediments?

Back

Sediments that precipitate directly from seawater, often forming minerals like manganese nodules.

Front

What are cosmogenous sediments?

Back

Sediments that originate from outer space, such as meteorite debris.

Front

What is the significance of grain size in sediment classification?

Back

Grain size helps determine the energy conditions of the environment where the sediment was deposited.

Front

What is the abyssal plain?

Back

A flat, deep-sea floor area that is typically covered with fine sediments.