How is the underground giant hole formed in Canada?
4hw.org: Recently, two explorers found a huge cave under the ground when they were exploring in Canada. It's usually about 200 meters high and six meters high. It's like a huge secret chamber. How did the cave form? Let's have a look at it together!
According to foreign media reports, two cave explorers recently found a huge cave underground in Montreal, Quebec, Canada. It is believed to have been formed 15000 years ago, with a huge internal space and an underground lake.
Two members of the Quebec cave society, Luc & middot; LeBron and his companion Daniel & middot; Cullen, have believed for years that there should be a series of caves connected to the San Leonardo caves that have been discovered in Montreal.
In 2014, the two found a small crack on the surface, revealing that there may be "another hole" underground. After nearly three years of exploration, the two were able to enter the cave in October this year.
It is understood that the newly discovered cave is at least 200 meters long and about 6 meters high inside. Due to the deep underground aquifer, part of the water in the tunnel is very deep, so we can only use inflatable boats to move forward.
LeBron and Karen travel to about 150 meters from the entrance, but they are blocked due to the high groundwater level. They plan to 'return' when the water level drops in February next year, when they are expected to push the exploration further 50 meters.
The genesis of the newly discovered cave is believed to be the same as that of its' neighbor 'San Leonardo cave, which was formed in an ice age on the earth, about 15000 years ago. The huge pressure of the surface glaciers leads to the cracking of the underground limestone layer, which creates this unique landform.