CORAL REEFS AND SUBMARINE BANKS 
W. M. DAVIS 
Cambridge, Massachusetts 
Part I 
Two Contrasted ‘THeeries of Coral Reefs 
Plan of Discussion 
Intermittent Subsidence as Postulated in Darwin’s Theory 
Structural Features of Reefs Formed during Subsidence 
Prolonged Crustal Stability as Postulated in the Glacial-Control Theory 
Possible Subsidence of Volcanic Islands 
Structural Features of Reefs According to the Glacial-Control Theory 
Parti II 
Fundamental Postulates of the Glacial-Control Theory 
Coral Reefs Not Destroyed during the Glacial Period 
Evidence from Hawaii, Tahiti, and Murea 
No Truncated Volcanoes Known in the Coral Seas 
The Floors of Atoll Lagoons 
The Depth of Lagoon Floors 
The Volume of Existing Reefs 
The Exterior Profile of Coral Reefs 
Lagoon Floors of Discontinuous Reefs 
Part III 
Submarine Banks in the Coral Seas 
Supposed Abraded Platforms beneath Submarine Banks 
Instability of the Australasian Archipelago 
Subsidence or Stability in the Indian Ocean 
Control of Depth of Submarine Banks 
Possible Balance of Processes Acting on Submarine Saalks 
Need of Oceanic Exploration 
Extra-Tropical Submarine Banks 
Bearing of Submarine Banks on the Coral-Reef Problem 
Darwin’s Theory of the Pacific Ocean 
Aol 
Two contrasted theories of coral reefs —As the coral-reef problem 
stands at present, consideration may be given chiefly to Darwin’s 
theory of intermittent subsidence and to the new glacial-control 
theory as presented by Daly; for the latter seems according to 
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