Émergence de Meyraguet
The Émergence de Meyraguet ("outlet of Meyraguet") is a cave in a steep face of the southern French river Dordogne in the commune of Lacave in the Lot department of the Occitania region . From a geological point of view, the Émergence de Meyraguet is a karst spring at the end of an infiltration stretch in the Causses de Gramat , a limestone plateau from the Jura period . The underground waters are mainly fed by the Ouysse , a tributary of the Dordogne. The cave entrance is located directly at the level of the waterline. It can be reached on foot in the water along the river bank or by boat and can also be accessed when the water level is low.
Cave research and cave diving
On November 19, 2003, a fatal accident occurred in the air bell between the first and second siphon, in which two Swiss cave explorers were killed. In a study of the gas composition of the air dome's atmosphere, a reduced oxygen content of 8.8 percent was found on the following day. Since then, a notice has been warning of non-breathable atmospheres in the cave system.
Web links
- Cross-sectional drawings of the explored part on plongeesout.com
- Niko Gerdau: Émergence de Meyraguet September 2009. November 13, 2009, accessed on August 11, 2011 (video compilation of a cave dive).
Individual evidence
- ↑ Operation De Secours: Emergence de Meyraguet ( French ) In: Spéléo Secours Français . November 21, 2003. Retrieved August 11, 2011.
Coordinates: 44 ° 50 ′ 54.01 " N , 1 ° 32 ′ 48.74" E