TrekGEO > Geology of Japan > Sedimentary facies > Reef core

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Reef core

Depth of water

High tide - Upper shoreface (0 - 5 m)

Circumstances

The area in the organic reef complex, where reef-forming organisms are growing. Reef core rised in the course of reef development. Subjected to the influences of waves. Width is approximately 50 m.

Sedimentary facies (Sediments)

Framework of reef-forming organisms, Bioclastic grainstone, Packstone, Oolite

Sedimentary facies (Structures)

Sigmoidal stratification

Sedimentary facies (Fossils, Coral reef)

Corals, Calcareous algae, Forams, Bryozoans, Shellfishes

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