Marine Sediment

What process creates lithogenous sediments?

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

Pelagic deposits form

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

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

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

Manganese nodules belong to

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

This is the largest intact meteorite. If it was broken down into sediment, what kind would it be?

• Lithogenous 
• Biogenous 
• Hydrogenous
• Cosmogenous

What is the origin of this sediment? (satellite image of a river draining into an ocean)

• Lithogenous 
• Biogenous 
• Hydrogenous
• Cosmogenous

What is the origin of the sediment that this makes? 

• Lithogenous 
• Biogenous 
• Hydrogenous
• Cosmogenous

Reminder question: Which of the following does NOT form as a result of divergent plate movement?

• islands

• mid-ocean ridges

• rift valleys

• trenches

Tektites are examples of which type of sediment?

• cosmogenous

• biogenous

• lithogenous

• hydrogenous

Sediment that is comprised of more than 30% of the broken down shells of organisms is known as what?

• slime

• ooze

• tektite

• clay