Hranická propast
The Hranická propast , also Macůška (German Weißkirchener Abgrund or Gevatterloch ) is an abyss on the right bank of the Bečva River on the southeastern outskirts of Hranice in Moravia , Czech Republic . It is part of the Hůrka u Hranic nature reserve and is located opposite the municipality of Teplice nad Bečvou by the ruins of the Svrčov castle in the Weißkirchen Karst.
history
The first attempts at diving were described as early as 1580 by Thomas Jordan from Klausenburg in his work "Kníha O Wodách Hojitedlných neb Teplicech moravských" , which was first published in Czech . The first mapping was done in 1627 by Johann Amos Comenius on his map of Moravia. In 1883 the Gevatterloch became the scene of a crime when the marriage fraud and serial killer Hugo Schenk and an accomplice on his honeymoon raped his bride Josefine Timal and then threw him into the abyss.
The more detailed exploration only began by the teacher Josef Šindel, who on April 25, 1902 lowered a two kilogram weight from a boat. This landed after 36 m and with the 69.5 m above the waterline, 105.5 m was considered the depth of the Propast for several decades. In 1963 a group of three divers managed to penetrate 42 meters into the water. They saw no reason and with their advance invalidated Šindel's measurements. As the technique improved, the diving attempts reached a water depth of around 90 m to below a place baptized as Zubatice . In April 1980 a probe was lowered from there, which encountered resistance at around 260 m. However, this result was not taken seriously due to the unusual way it was carried out. In the following years, the exploration of a blind arm, which is known as the rotunda , was devoted to . This rises vertically up to above the waterline.
On September 18, 1995, the Belgian diving robot Hyball reached a depth of 205 m with no bottom in sight. Divers have since advanced to a depth of 181 m. At this depth the Propast begins to bend to the southwest, but the further course cannot be guessed at.
On September 27, 2016, the Polish cave explorer and diver Krzysztof Starnawski reached a depth of 404 m with a diving robot. The diving robot had not reached the bottom and had to stop because the cable was no longer after Starnawski himself had dived to 200 m and started the diving robot from there.
geology
The abyss was created by the escape of carbon dioxide-rich thermal water and consists of a dry upper part that is 69.5 meters deep. The lower part is filled with water. The bottom of the lake has not yet been reached, measurements have penetrated to a total depth of 404 m. This makes the Gevatterloch the deepest abyss in Central Europe.
To the west are the Zbraschau aragonite caves .
Individual evidence
- ↑ Archived copy ( Memento of the original dated May 12, 2008 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ National Geographic Magazine Česko : Hranická propast stále neznámá , September 2007 issue, pp. 26–35
- ↑ Guardian https://www.theguardian.com/world/2016/sep/30/worlds-deepest-underwater-cave-found-czech-republic-hranice-abyss
Web links
Coordinates: 49 ° 31 ′ 55 ″ N , 17 ° 45 ′ 3 ″ E