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With growth rates of 0.3 to 2 centimeters per year for massive corals, and up to 10 centimeters per year for branching corals, it can take up to 10,000 years for a coral reef to form from a group of larvae (Barnes, 1987).lick the image to see an animation. Coral reefs begin to form when free-swimming coral larvae attach to submerged rocks or other hard surfaces along the edges of islands or continents. As the corals grow and expand, reefs take on one of three major characteristic structures fringing, barrier or atoll.
Drilling revealed about 1,400 metres (4,600 feet) of reef material. At least two writers have attacked the young age position using the argument that this coral atoll must have taken a very long time to form 1,2 âthey estimate 138,000 and 176,000 years respectively as the minimum age for Eniwetok.ustraliaâs beautiful Great Barrier Reef is the worldâs longest coral reef. It extends from near Papua New Guinea down Australiaâs east coast for about 2,000 kilometres. In a previous Creation magazine (Vol.