| 词条 | Hranice Abyss |
| 释义 |
The Hranice Abyss ({{lang-cs|Hranická propast}}), the English name adopted by the local tourist authorities, is the deepest flooded pit cave in the world. It is a karst sinkhole located near the town of Hranice (Přerov District). The greatest confirmed depth (as of 27 September 2016) is 473 m (404 m under the water level), which makes it the deepest known underwater cave in the world.[1] Moreover, the expected depth is 800–1200 m.[2] The Hranice Abyss was created by a collapse of the cave roof, which was eaten away by warm carbonic acidulous spring water in limestone.[3] References1. ^{{cite web|url=http://www.nationalgeographic.com/adventure/activities/caving-and-canyoneering/deepest-underwater-cave-discovered/| title=Exclusive: Deepest Underwater Cave Discovered}} 2. ^{{cite web|url=http://zpravy.aktualne.cz/domaci/hranicka-propast-muze-mit-az-1200-metru-ted-musime-vytahnout/r~23021b5c871711e6bff10025900fea04/| title=Hranice Abyss is believed to be 1200 m. deep (in Czech)}} 3. ^Hranice Gorge and Zbrasov Aragonite Cave, official leaflet 2012. External links{{commons category|Hranická propast}}
3 : Sinkholes of the Czech Republic|Přerov District|Caves of the Czech Republic |
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