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The Red Lake sinkhole in Croatia. A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer. The term is sometimes used to refer to doline, enclosed depressions that are also known as shakeholes, and to openings where surface water enters into underground passages known as ponor, swallow hole or ...
The Great Blue Hole is a giant marine sinkhole off the coast of Belize. It lies near the center of Lighthouse Reef, a small atoll 70 km (43 mi) from the mainland and Belize City. The hole is circular in shape, 318 m (1,043 ft) across and 124 m (407 ft) deep. [1][2] It has a surface area of 70,650 square metres (760,500 sq ft).
Kilsby sinkhole – in Mount Gambier, Southern Australia. Koonalda Cave – a cave located in the Nullarbor Plain in South Australia. Little Blue Lake – water-filled doline located near Mount Schank in South Australia. Numby Numby – a sinkhole located 25 to 30 kilometres (16 to 19 mi) west-northwest of Borroloola in the Northern Territory.
The Xiaozhai Tiankeng is 626 meters (2,054 feet) long, 537 meters (1,762 feet) wide, and between 511 and 662 meters (1,677 and 2,172 ft) deep, with vertical walls. Its volume is 119,349,000 m³ and the area of its opening is 274,000 m 2. This material has been dissolved and carried away by the river. The sinkhole is a doubly nested structure ...
The Great Blue Hole, located near Ambergris Caye, Belize Dean's Blue Hole, Long Island, Bahamas Watling's Blue Hole, San Salvador Island, Bahamas. A blue hole is a large marine cavern or sinkhole, which is open to the surface and has developed in a bank or island composed of a carbonate bedrock (limestone or coral reef).
The Bayou Corne sinkhole (French: Doline de Bayou Corne) was created from a collapsed underground salt dome cavern operated by Texas Brine Company and owned by Occidental Petroleum. The sinkhole , located near the community of Bayou Corne in northern Assumption Parish , Louisiana , was discovered on August 3, 2012, and 350 nearby residents were ...
A cenote (English: / sɪˈnoʊti / or / sɛˈnoʊteɪ /; Latin American Spanish: [seˈnote]) is a natural pit, or sinkhole, resulting when a collapse of limestone bedrock exposes groundwater. The term originated on the Yucatán Peninsula of Mexico, where the ancient Maya commonly used cenotes for water supplies, and occasionally for sacrificial ...
Taam Ja' blue hole. Location of the Taam Ja' blue hole. Taam Ja' blue hole is an underwater sinkhole located in Chetumal Bay at the southeast corner of the Yucatan Peninsula. Its name means deep water in the Mayan language and, at over 420 metres (1,380 ft) deep, it is the deepest known blue hole. [1]