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Book Chapter

Modern Shallow Water Carbonate Platform Margins

Albert C. Hine
Albert C. Hine
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January 01, 1983


Carbonate platforms or banks are buildups of locally-formed, laterally-restricted sediment accumulations which possess topographic relief and typically have a more or less horizontal top and abrupt shelf margins where “high energy” reefs or sand shoals occur (Wilson, 1975, p. 20–21). For purposes of this course, we will consider not only the platform but also: (1) carbonate ramps that build away from positive areas and extend down gentle paleoslopes with no striking break in slope; (2) atolls which are ring-like organic accumulations in oceanic environments that surround deep, central lagoons; and (3) barrier reefs which are offshore curvilinear belts of organic accumulation separated from the coast by a lagoon (Wilson, 1975).

Modern carbonate platforms assume many shapes and sizes, and occur in a variety of tectonic settings. However, most are climatologically restricted to within 30° N or S latitude (Fig. 3-1), which is essentially a response to temperature. Warm water environments, where most carbonate platforms develop, have a minimum near-surface temperature no lower than 14-15° C. These areas produce primarily skeletal components such as hermatypic corals, calcareous red and green algae, benthic foraminifera, molluscs, and bryozoans. They also produce non-skeletal grains such as ooids, peloids, and complex aggregate grains (Lees, 1975).

In contrast, temperate water carbonate accumulations consist of benthic foraminifera, molluscs, barnacles, bryozoans, and calcareous red algae; and few non-skeletal grains form in these environments (Lees, 1975). These colder-water, turbidity-free carbonate environments do not build the rapidly, vertically accreting, thick carbonate buildups seen in the lower latitudes.

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SEPM Short Course Notes

Platform Margin and Deep Water Carbonates

Harry E. Cook
Harry E. Cook
Branch of Oil and Gas Resources, U.S. Geological Survey, Menlo Park, CA
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Albert C. Hine
Albert C. Hine
Department of Marine Sciences, University of South Florida, St. Petersburg, FL
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Henry T. Mullins
Henry T. Mullins
Department of Geology, Syracuse University Syracuse, NY
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SEPM Society for Sedimentary Geology
ISBN electronic:
Publication date:
January 01, 1983




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