Focus on Sedimentary Environments

A modern carbonate beach and lagoon

Grassy Key, Florida Keys, USA

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Sediment thin section
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enlarged image
A thin section of the tidal flat sediment, seen in plane-polarized light. Scale bar is in mm.
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Environmental energy

Examine the sediment in the large image. What do the grain size and grain shape tell us about the nature of the depositional environment, and the processes which operate there?


Page © ; last updated 30 July, 2002