Kwelwater
Source du Marchepied
A resurgence on the Célé downstream of Marcilhac-sur-Célé, opened by British divers in 2002 after heavy digging. Three sumps lead to a choke 1,338 m from the entrance; the FFS fiche states that diving is prohibited pending access works.
The Marchepied was fully blocked until summer 2002, when a Cave Diving Group team led by Clive Stell dug open the entrance and dived the first sump. Later teams re-opened the partly collapsed entrance, shored it up and resurveyed it, and in 2008 Rick Stanton passed a gravel squeeze at 65 m in the third sump, ending at a boulder choke at 57 m.
The FFS fiche describes three sumps: S1 of 510 m (max -17 m), a short S2 of 28 m, and S3 of 668 m reaching -69 m. The air-filled passages between sumps are described as containing high carbon dioxide and low oxygen. The fiche also states that access was being reorganised and that dives were prohibited until the works were complete; no later update was found.
De omgeving
A tight entrance suited to side-mounted cylinders, opening into a winding first sump; dry sections between sumps have foul air according to the FFS fiche.
Omstandigheden
Air-filled passages between the sumps are reported to have high CO2 and an oxygen deficit.
Gebruikelijke ranges uit gepubliceerde bronnen, geen actuele omstandigheden.
Voor oriëntatie, niet voor navigatie. Holle stippen zijn bij benadering.
Elk gegeven op deze pagina, met zijn bron (8)
| Gegeven | Status | Bron |
|---|---|---|
| In summer 2002 a CDG team (Clive Stell, Tim Chapman, Marcel Hattemann, Martina Maier) dug open the entrance and reached the start of the third sump about 670 m in. | Geverifieerd | [1] |
| The cave extends 1,338 m from the entrance, of which 1,208 m are flooded, ending at an impassable boulder choke at 57 m depth. | Geverifieerd | [1] |
| The third sump reaches a maximum depth of 69 m beyond a gravel squeeze at 65 m, passed by Rick Stanton in 2008. | Geverifieerd | [1] |
| The dry passages between sumps contain a high concentration of CO2 and a notable oxygen deficit. | Geverifieerd | [1] |
| Access is being developed and organised, and dives are prohibited until the works are complete.Notice undated on the fiche; current status could not be confirmed. | Mogelijk verouderd | [1] |
| The resurgence is located near N 44.54 E 1.77 (area level; a provider publishes precise coordinates). | Geverifieerd | [2] |
| The resurgence is located near N 44.54 E 1.77 (area level). | Geverifieerd | [2] |
| Dives are prohibited until access works are complete.Undated notice on the FFS fiche. | Mogelijk verouderd | [1] |
Geverifieerd: vermeld door een officiële of primaire bron die we hebben geraadpleegd. Gemeld: alleen afkomstig van een secundaire bron. Bronnen spreken elkaar tegen: de noot geeft beide versies. Mogelijk verouderd: de nieuwste bron die we hebben gevonden is oud.
In eigen woorden geschreven op basis van bovenstaande bronnen. Een correctie melden