Scientists have announced the discovery of what they describe as the world¡¯s?deepest?blue hole, off the coast of Mexico.?Taam?Ja¡¯ Blue Hole (TJBH),?is located in Chetumal Bay off the Yucatan Peninsula and?it?is estimated to be at least 1,380 feet (420?metres) below sea level. This makes TJBH the deepest known underwater sinkhole in the world.
Blue holes are water-filled vertical caverns, or sinkholes, found in coastal regions where the bedrock is made of soluble material, such as limestone, marble?or?gypsum. They form when water on the surface percolates through the rock, dissolving minerals and widening cracks, which eventually causes the rock to collapse.
Taam?Ja' Blue Hole was first identified by researchers in 2021 and the initial measurements?had?suggested that it had a depth of 900 feet, making it the second-deepest blue hole found on the planet.
However, a new study estimated that Taam?Ja' Blue Hole is much deeper than initially thought.
According to researchers, Taam?Ja' Blue Hole is 480 feet (146 m) deeper than scientists initially documented, and 390 feet (119 m) deeper than Sansha Yongle Blue Hole, also known as the Dragon Hole, in the South China Sea which is has an estimated measurement of 990 feet (301 m).
In December 2023, researchers undertook a scuba diving expedition was conducted to identify the environmental conditions prevailing at the TJBH.
Based on their measurements with a conductivity, temperature?and?depth (CTD) profiler researchers have concluded that the Taam Ja' blue hole is "the world's deepest known blue hole, with its bottom still not reached."
They believe that the bottom might be an intricate network of caves and tunnels, potentially interconnected. This unseen world could be a haven for unknown lifeforms, thriving in the darkness.
Scientists are now planning to"decipher TJBH's "maximum depth and the possibilities of forming part of an underwater intricate and potentially interconnected system of caves and tunnels.
"Within the depths of TJBH could also lie a biodiversity to be explored," they said.
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