Marine Sediments

How many different marine sediment types do we distinguish?

• 2
• 3
• 4
• 5

What process creates lithogenous sediments?

• Precipitation from seawater
• Weathering and erosion
• Dissolution of carbonate shells
• Evaporation

On the whole, what is the most important mechanism of transporting continental lithogenous sediments to the ocean?

• Wind
• Flowing water
• Glaciers and icebergs
• Gravity (mass flows)

Tags

NGSS.MS-ESS2-4

Pelagic deposits form

• in deep ocean basins.
• on the continental shelf.
• on the continental slope.
• in warm shallow water.

Beach deposits are an example of

• hydrogenous sediment.
• cosmogenous sediment.
• biogenous sediment.
• lithogenous sediment.

Which of the following organisms produce calcium carbonate shells (tests)?

• Coccolithophores and radiolarians
• Radiolarians and diatoms
• Coccolithophores and foraminifers
• Foraminiers and diatoms

Evaporites are examples of

• lithogenous sediments.
• hydrogenous sediments.
• biogenous sediments.
• cosmogenous sediments.

In which environment do neritic deposits not form?

• Close to the shore.
• In deep ocean basins.
• On the continental shelf.
• On the continental slope.

Manganese nodules belong to

• lithogenous sediments.
• biogenous sediments.
• hydrogenous sediments.
• cosmologeous sediments.

What is the largest particle in sediment?

• Gravel
• Sand
• Clay
• Silt