Types of Reefs and Reef Formation

11/25/01

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Table of Contents

Types of Reefs and Reef Formation

Types of Reefs

Volcanic Island Reefs

Barrier Reef and Lagoon

Kane‘ohe Bay, a Barrier Reef Lagoon System

Volcanic Island with a Well-Developed Barrier Reef Lagoon System

Coral Reef Atolls

Atolls

Patch Reefs of Lagoons

Cross Section of an Atoll

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Continental Shelf Barrier Reef

Platform Reef on a Continental Shelf

Fringing Reef Around a Continental Shelf Island

Fringing Reef Along a Continental Margin

Reef Growth

Reef Construction Processes

Principal Framework Builders

Scleractinian Coral Framework Builders

Non-Scleractinian Coral Framework Builders

Coralline Algae Framework Builders

Other Framework Builders

Sources of Reef Sediments

Reef Sediments: Foraminifera

Reef Sediments: Halimeda Sand

Reef Sediments: Sponge Spicules

Reef Sediments: Other Skeletal Remains

Reef Cementers

Reef Cementers: Encrusting Coralline Algae

Reef Cementers: Encrusting Coral

Reef Erosion Processes

Mechanical Erosion

Microatoll on Shallow Reef Flat

Direct Bioeroders

Direct Bioerosion

Direct Bioerosion

Direct Bioerosion

Direct Bioerosion

Direct Bioerosion

Indirect Bioeroders

Indirect Bioerosion

Indirect Bioerosion

Indirect Bioerosion

Overall Process

Charles Darwin

The HMS Beagle

Darwin’s Island Reef Maps

Darwin’s Theory of Coral Atoll Formation

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Author: David A. Krupp

Email: krupp@hawaii.edu

Home Page: krupp.wcc.hawaii.edu