Facts about Blue Hole
Some quick facts about Blue Holes are mentioned below:
- Blue holes are generally circular depressions with high walls.
- They get their name from the striking contrast between the deeper, dark blue waters in their depths and the shallower, lighter blue waters surrounding them.
- They often have poor water circulation and are anaerobic below a certain depth, which is not ideal for most marine life but can still be home to a lot of bacteria.
- Both the vibrant white carbonate sand and the water’s exceptional transparency contribute to the deep blue color.
- The most durable color in the rainbow is blue; other colors, such as red, yellow, and finally green, are absorbed when they travel through water, but blue light reaches the white sand and reflects.
- The Dragon Hole is located in the South China Sea and is the world’s deepest blue hole, measuring 300.89 meters (987 ft) deep.
- Dean’s Blue Hole, situated in a bay west of Clarence Town on Long Island, Bahamas, is the second-deepest blue hole in the world, with an underwater entrance of 202 meters (663 feet).
- Some blue holes are only roughly 100–120 meters (330–390 feet) deep, which is around half that depth.
Blue Hole
Blue Hole: A blue hole is an underwater, large marine sinkhole or cavern. They can cover areas bigger than cities and are hundreds of meters long. Carbonate bedrock, such as coral reefs or limestone, makes up blue holes. They may contain tidally-influenced fresh, marine, or mixed water. By releasing nutrients, some of the holes help the biodiversity in their natural surroundings. Off the coast of Mexico, a blue hole measuring 900 feet deep was found in 2021. In February 2023, a study on the blue hole was first published in the Frontiers in Marine Science publication.
In this article, we will read about Blue Hole, interesting facts about them, the formation of blue hole, their location, biodiversity, and the great blue hole of Belize.
Table of Content
- What is Blue Hole?
- Facts about Blue Hole
- Formation of Blue Hole
- Blue Hole Location
- Blue Hole Biodiversity
- Sedimentation in Blue Holes
- Fossil Preservation in Blue Holes
- Great Blue Hole – Belize
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