Coral Reef Formation: Subsidence Theory

The question asks to identify the scholar who proposed the Subsidence Theory concerning coral reefs.

Subsidence Theory Explanation

The Subsidence Theory, a significant explanation for the formation of coral reefs, particularly atolls, was primarily developed by Charles Darwin.

• The core idea is that coral polyps start growing around a volcanic island that gradually sinks (subsides) over time.
• As the island subsides, the corals continue to grow upwards, maintaining their position near the surface of the water.
• This process leads to the formation of a fringing reef, then a barrier reef, and finally, an atoll (a ring-shaped coral reef enclosing a lagoon) when the central island has completely submerged.

Scholar Attribution

Charles Darwin is credited with formulating and elaborating the Subsidence Theory based on his observations during the voyage of the HMS Beagle.

While other scholars like Davis and Dutton proposed modifications or alternative theories later, Darwin's initial concept laid the foundation for understanding reef development through subsidence.

Therefore, Darwin is the scholar associated with the Subsidence Theory of coral reefs.