Focus on Sedimentary Environments

A tropical carbonate beach

Bolongo Beach, St Thomas, US Virgin Islands

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beach sediment
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Carbonate gravel on Bolongo Beach
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Identifying sediment components

In this closer view of the carbonate beach gravel, you should be able to identify some of the components.

 

Which of the following shells or skeletons are clearly identifiable in the image?
bivalve
 brachiopod
 scleractinian coral
 trilobite
 green calcareous algae
 gastropod

Page © ; last updated 30 September, 2003