In this article we will discuss about the conditions for the growth of coral polyps. (1) Corals are found mainly in the tropical oceans and seas because they require high mean annual temperature ranging between 68°F and 70°F (20°C- 21°C) for their survival. It may be pointed out that they cannot survive in the waters […]
Growth of Coral Polyps: 9 Conditions | Oceans | Geography
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3 Main Types of Coral Reefs | Oceans | Geography
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The following points highlight the three main types of coral reefs. The types are: 1. Fringing Reef 2. Barrier Reef 3. Atoll. Type # 1. Fringing Reef: Coral reefs developed along the continental margins or along the islands are called fringing reefs (fig. 30.1). The seaward slope is steep and vertical while the landward slope […]
4 Main Theories of Coral Reefs and Atolls | Oceans | Geography
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The following points highlight the four main theories of coral reefs and atolls. The theories are: 1. Subsidence Theory of Darwin 2. Stand Still Theory of Murray 3. Glacial Control Theory of Daly 4. Concept of W.M. Davis. 1. Subsidence Theory of Darwin: Charles Darwin postulated his subsidence theory first in 1837 and modified it […]