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The Xiaozhai Tiankeng has been well known to local people since ancient times. Xiaozhai is the name of an abandoned village nearby and literally means "little village", and "Tiankeng" means Heavenly Pit, a unique regional name for sinkholes in China. A 2,800-step staircase has been constructed in order to facilitate tourism. [2]
But peering into one recently discovered sinkhole in the hilly outlying regions of southern China, one finds a lush forest down below with ancient towering trees. It's a place they call "tiankeng ...
The sinkhole was formed in karst terrain, which means rock below the surface can easily be dissolved by groundwater circulating through the bedrock. [5] The large hole measures over 1,000 feet in length, almost 500 feet wide and 630 feet deep, with a volume of over 176 million cubic feet. [ 6 ]
Its depth and width must measure at least 100m for it to qualify as a sinkhole. Some, like the one found in Guangxi in 2022, are much bigger, stretching 300m into the earth and 150m wide ...
The Great Blue Hole, a giant submarine sinkhole, near Ambergris Caye, Belize The following is a list of sinkholes , blue holes , dolines , crown holes , cenotes , and pit caves . A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer.
The site is apparently geologically unique in the Hawaiian Islands, comprising a sinkhole paleolake in a cave formed in eolianite limestone. The paleolake contains nearly 10,000 years of sedimentary record; since the discovery of Makauwahi as a fossil site, excavations have found pollen, seeds, diatoms, invertebrate shells, and Polynesian artifacts, as well as thousands of bird and fish bones.
As Whitefish Bay works to fix the collapsed 90-year-old utility pipe that left a gaping sinkhole around Big Bay and Buckley Parks, village staff warn that aging utility infrastructure could be a ...
Maunalua Bay is a bay in the southeast of Honolulu, the capital of Hawaiʻi. The bay extends about 6.3 miles (10.1 kilometers) from the southern tip of Diamond Head , the Black Point , also called Kūpikipikiʻō , in the west to Portlock Point, also known as Kawaihoa Point , to the east.