Coastal Sediment Quiz Form
Test your knowledge of coastal sediment identification, classification, processes, sampling, and interpretation.
Which of the following is the primary mineral found in most beach sands?
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Quartz
Calcite
Gypsum
Halite
What is the term for the process by which sediment is transported along the shoreline by wave action?
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Longshore drift
Saltation
Suspension
Solution
Which grain size describes silt?
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0.002–0.063 mm
0.063–2 mm
2–64 mm
<0.002 mm
Which instrument is commonly used to collect sediment cores from the seafloor?
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Vibracorer
CTD profiler
Hydrophone
Secchi disk
What does a well-sorted sediment sample indicate?
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Grains are similar in size
Grains are different minerals
Grains are angular
Grains are cemented together
Which coastal environment is most likely to have muddy sediments?
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Estuary
Open ocean beach
Rocky headland
Coral reef
Name one method used to determine sediment grain size in the laboratory.
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Interpret the following: If a sediment sample contains mostly rounded grains, what does this suggest about its transport history?
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Which of the following best describes the process of sediment deposition?
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Settling of particles from suspension
Dissolving minerals in water
Erosion of rocks
Formation of new minerals
Classify the following: A sediment sample with 80% sand, 15% silt, and 5% clay is best described as:
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Sandy sediment
Clayey sediment
Silty sediment
Gravelly sediment
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