Aven d'Orcade
The aven d'Orcade is an active, washed-out cavity whose progression alternates well-dug shafts, boulder chokes and large shafts, until a change of level from Bathonian dolomite to limestones announcing the lower Bathonian.
EspeleoWorld
Aven d'Orcade
The aven d'Orcade is an active, washed-out cavity whose progression alternates well-dug shafts, boulder chokes and large shafts, until a change of level from Bathonian dolomite to limestones announcing the lower Bathonian.
Nant
Profondità: 141 m
Scheda aggiornata
https://espeleoworld.com/it/c/aven-d-orcade-nant
Le informazioni possono cambiare. Verifica sempre coordinate, accesso, meteo e condizioni della cavità prima di partire.
The aven d'Orcade is an active, washed-out cavity whose progression alternates well-dug shafts, boulder chokes and large shafts, until a change of level from Bathonian dolomite to limestones announcing the lower Bathonian.
Descrizione
Morfologia
The small entrance announces a series of very well-dug shafts (8, 3, 6 and 8). At about -25, a vertical passage of a few metres in a choke announces a change of morphology. We reach a large fissure in the ceiling of enormous blocks. a P13 cut by a good ledge of wedged blocks leads to a set of wedged blocks (again!) above voids dominating the "Perdus de l'Aragonite" network.
This shaft makes us change level: whereas we were in the Bathonian dolomite, here we are in the first limestone levels announcing the lower Bathonian.
Idrologia
The aven d'Orcade is a very fine cavity, washed out, active, which would deserve to be continued.
Progressione
I take the liberty here of giving a very quick description with the updates relative to the last publication of our friends of the GS Nant. We leave these branches to set off opposite in the continuation of the large fissure and to climb 6 to 7 m. a short narrow passage in the joint, a small downclimb, and here we are at the top of a step leading to the chamber overhanging the magnificent P60, "Emile Bugat" shaft. The rigging of this one begins with a comfortable handline on a flow to avoid putting one's feet on the unstable scree that pours down there. At the bottom, the joint continues and one easily reaches by downclimbing the 10 m shaft, whose top has been cleared of its unstable blocks, now posing neither difficulty nor danger. a large ledge leads us to the last shaft of 4 m.
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Fonte: BRGM BDCavité (inventaire des cavités souterraines), via Géorisques (www.georisques.gouv.fr), modificato. Licence Ouverte 2.0, https://www.etalab.gouv.fr/licence-ouverte-open-licence/ Ministère de la Transition écologique, de la Biodiversité et des Négociations Internationales sur le Climat et la Nature – données Géorisques (BRGM), mise à jour du 2026-10-16 · dati aggiornati a 2026 · Contiene informazioni da Grottocenter (Wikicaves), grottocenter.org, rese disponibili con la Open Database License (ODbL 1.0, https://opendatacommons.org/licenses/odbl/1-0/), modificate. · profondità · ottenuti il 2026-10-19 · https://grottocenter.org/ui/entrances/105303 · I dati derivati sono disponibili su richiesta con licenza ODbL: [email protected] · dati aggiornati a 2026 · Fonte: Grottocenter (Association Wikicaves), worldwide collaborative cave database (grottocenter.org), modificato. CC BY-SA 3.0, https://creativecommons.org/licenses/by-sa/3.0/ Grottocenter (Wikicaves) · Testo di KDD122 (description) · adattato da Espeleoworld (normalizzato, tradotto); l'adattamento è rilasciato con licenza CC BY-SA 3.0, https://creativecommons.org/licenses/by-sa/3.0/ · descrizione · ottenuti il 2026-10-18 · https://grottocenter.org/ui/entrances/105303 · dati aggiornati a 2026